Chapter 5 Case 4: The Old House

"Let's not be afraid of how bad the social impact will be. After all, the case has already happened. What we have to do is to solve the case as soon as possible, so that bad things will turn into good things." After thinking about it, I asked, "Is the scene bloody? How bloody?" "Tell me, how will you compensate us?" I threw a stack of photos of the case on Boss Wu's desk, and said pretending to be angry. "Compensation? Why do you need to compensate you?" Boss Wu smiled all over his face. "Are you really demented? Did you forget what you said so quickly?" I said, "I said you are a crow's mouth, but you still don't believe it. Last time you said there was a murder case, you immediately came to the murder case; What did you say last time, "If there is another serial case and these three words again, maybe I will find something." Look, there is really a serial case. Your golden eloquence, what are you talking about? It is really effective. I am a crow at best, but you are old, you can catch up with Jingwei."

Boss Wu has a very good relationship with us, even if the joke is too much, he will not get angry. "Jingwei?" Boss Wu said with a playful smile, "Are you talking about the one that fills the sea? Then you have a half-knowledge. Jingwei is not a crow. Jingwei is the youngest daughter of the sun god, who turned into a kind of colorful head." , white-billed, and red-clawed bird, inhabits Fajiu Mountain. The reason why it is called Jingwei is because its cry is like this, which is a more miserable cry." For this old pedant who is well-versed in both arts and science, I definitely can't say enough about him, so I rolled my eyes and said, "Yes, screaming, isn't this screaming?"

"Let me tell you, I think the main reason why you have encountered series of cases this year is because of your couplets." Boss Wu bared his teeth. In order to improve the cultural accomplishment of the police, during the Spring Festival this year, a Spring Festival couplet competition was held in the hall, requiring all departments to combine their own work to create a couplet. We investigated a group of Spring Festival couplets created like this: We found a retired old forensic doctor who likes calligraphy, and wrote this Spring Festival couplet with domineering fonts.As soon as it was posted on the wall, it was praised by all parties, so we also won the first prize logically, and the prize was a bottle of shampoo.

This result is not easy, although we are so busy every year, but for some reason, the performance appraisal is always inferior to other departments.Therefore, we have hung this precious award-winning Spring Festival couplet on the wall for more than two months. It is the turn of spring and summer, and we have not torn it off. "Thousands of grievances! Haha! There are only 20 or 30 cases that require you to go to the scene every year." Boss Wu said, "It will take you more than five hundred years to clear up ten thousand grievances. Do you think Are you Sun Monkey? It must be because God is afraid that you will not be able to complete the task, so it will wind you up."

I was so angry that I couldn't speak for a while. Lin Tao said with a smile: "Okay, you two are disrespectful, stop talking nonsense, can you talk about business?" Lin Tao's words pulled us out of the bickering. "By the way, can you see any specific writing features?" I spread out the photo and placed it in front of Boss Wu. Boss Wu said: "Lin Tao sent me the photo, and I did a careful comparison. Judging from the writing habits and the subtle features of the font, it must be no problem to confirm that it was written by the same person." "We also know that we are the same person." I said, "The method of committing the crime, the victim of the crime, etc. are almost exactly the same."

Boss Wu said: "After all, the crime was committed in two places. First of all, there is evidence to confirm that a single person committed the crime, which can rule out the possibility of an organization or group committing the crime. At least, we know the trajectory of this suspect." I nodded and agreed with Boss Wu's statement. Boss Wu went on to say: "As for the specific features, it's really hard to find. First, after all, there are only these three characters in the two cases, and second, the writing carrier is a wall, which loses a lot of identification conditions. So, I started holding Looking at it with the attitude of a dead horse as a living horse doctor. However, if you don’t look at it, you don’t know, it’s really a surprise to see it.”

"Oh?" Lin Tao and I said in unison. Boss Wu put the photos of the two cases together on the computer desktop, and said: "Can you see any clues? Don't waste time on writing habits, after all, that is not a specificity. Let me remind you, is there any possibility? typo?" "There are only three words in total, and you didn't say it, the murderer has a certain level of education, how could there be a typo?" I said. "Education level is not necessarily directly proportional to the probability of typos." Boss Wu said, "Many people with extensive knowledge also habitually write typos. Otherwise, how could there be the theory of false characters? And some typos, because the consecutive strokes Because of this, it may not be discovered by others.”

Lin Tao and I looked at the photos carefully, but still found nothing. Boss Wu smiled slightly, and said: "Look, the character 'Qing' is neatly written because it starts with a stroke; the strokes of the character 'Fu' are simple, so there is no problem; the only thing is the character 'Tao'." "In both cases, the word 'Tao' was not clearly written." Lin Tao said. "It's not a feature to be unclear." Boss Wu said, "I don't know now, so I zoomed in for you to see." After speaking, Boss Wu zoomed in on the photo so that only the word "Tao" can be seen.

"When we wrote 'Tao', at the bottom of the walk was the 'head' of a 'leader'. Below the word 'shou' was the word '自', which should have two horizontal lines in the frame, but the murderer habitually wrote three horizontal lines , This is a typo. Maybe he knew it should be two horizontal lines, but when he wrote it, it would cause deviation due to inertial mistakes." Boss Wu said. Lin Tao and I frowned and stared at the screen intently.Due to the magnification, the blood characters on the screen appear to be blurry with insufficient pixels. In addition, when the murderer himself wrote this word, it was even more unclear because of the many strokes and the scribbled writing.But in the light red "自" character, we can indeed see three horizontal lines.

"Is this reliable?" I turned the photos around. Boss Wu lit a cigarette, took a deep breath, and said, "It may not be reliable. However, the same characteristics were found in the two scenes. Although it is not very clear, it is still very suspicious." "Can this be considered a specific characteristic?" Chen Shiyu interrupted and asked. Boss Wu said: "There are tens of thousands of typos, but there are not many people who write the same word wrongly in the same place. Therefore, I think there is no value in investigation, but at least it has value in screening."

Screening value means that this feature can be used to screen all suspicious people.Because it is necessary to obtain a person's real handwriting, it is necessary to search for his previous handwriting. In this era of popularized computers, the workload of doing so is extremely heavy, so it is not feasible.Generally, the characteristics that are valuable for screening are age, height, gender, physical characteristics, etc., because these factors are easy to check and can be directly identified during the interview, so they can be used as a basis for screening.The value of screening refers to the fact that the police have key suspects, and they can focus on screening this special person. "If it is really valuable for screening, that would be great. We can ask investigators to find more qualified people to secretly obtain handwriting." Chen Shiyu said. "However, let me put my ugly words up front." Boss Wu said, "This is the characteristic that I found out by a dead horse as a living horse doctor. It's hard to say whether it is accurate. You have also seen that in the two cases, this The word 'Tao' is not very clear. Don't find out that this feature is caused by the murderer's two coincidences when it is used for screening. I can't bear the responsibility." "That's true." I said, "Whether this is a habitual typo or a visual error caused by continuous writing, it's really hard to say. We will treat it with caution." "At least from the document inspection, we can probably deduce the murderer's height." Boss Wu said, "Around 1.7 meters, this can be used as a screening condition." "There are too many people who are 1.7 meters tall." I shook my head. Dabao said, "What about the gender? Boss Wu, can you tell the gender?" It seems that Dabao has no doubts about the scent of the perfume he smelled at the scene last time, and now he is getting entangled in the issue of gender again. "First of all, we don't have sufficient evidence to prove the murderer's gender." I interrupted Dabao and said, "Secondly, I think women should not be so powerful when they strike with rib injuries." Boss Wu pinched his nose, frowned and said, "Last time we said that judging gender from the words on the wall is definitely unscientific. However, I think these words are beautiful, and it is not ruled out that they were written by women. " "Look, look," Dabao said, "Boss Wu supports me." "What Boss Wu said is not ruled out, okay? 'Not ruled out' and 'yes' are two different concepts." I said. "Isn't it because of the small sample size?" Boss Wu said, "If the murderer can write this phrase a few more times, I think the exposed features will be more obvious and help us judge." "Boss!" I bowed down and said, "Put your Jingwei mouth away!" This time, Boss Wu's Jingwei mouth didn't show up right away, and we spent another whole week in boring administrative work.As before, the department's party was still held twice. Of course, the murder case cannot be let go.During this week, we often called Longpan City Public Security Bureau and Yuntai City Public Security Bureau to inquire about the investigation status of the "Scavenger Project". Judging from a week's investigation, almost all the investigations have been done in vain.The investigative department started with homeless people, took into account the factors of scrambling for territory and the factors of mental patients committing crimes, and even dispatched a large number of police forces to study and judge all the surveillance videos around the scene, but still could not find any clues.The investigation of the case is not just as simple as being deadlocked, but completely lost.The investigator's confidence was frustrated, and he didn't know how to investigate. Of course, thinking about it every day still does not allow us to make breakthroughs in criminal technology.These two cases have become unsolved cases. Even though the provincial department has listed this series of cases for supervision, as the grassroots unit for the specific implementation, they still have no clue. We also asked Boss Wu not to forget to identify whether the word "Dao" written by the murderer will appear during the daily document inspection process.One is to see if there are many people who write wrong words like this, and the other is to look for a needle in a haystack and wait on the sidelines to see if the murderer will be involved in other crimes, so I just sent the handwriting for identification.Of course, only an extreme coincidence can solve the case.However, with these two cases at this point, one can only hope for a coincidence. On Monday, I came early, looking at the photos of our party on Chen Shiyu's computer, the more interesting it became, the bell's big belly, Dabao and Baosao's drinking, Han Liang's new girlfriend...Suddenly, the phone rang in a hurry.From the caller ID, it was Master's call. My heart tightened, and I knew that there was another job coming. "It's seven fifty-nine." The master said, "I'll see if you're late." I thought to myself, so you always come to check the post, but fortunately I came early today. Master seemed to have figured out what I was thinking, and continued, "Of course, I didn't make this call just to investigate the post, but to trouble you. I just received a report from the command center that two people died in Qinghua County. The case has been determined to be homicide during the preliminary investigation, and we need our guidance and support, so you should set off as soon as you are ready." "No trouble, no trouble!" I was a little excited.Since Miao Zheng's family was exterminated, there have been no murders of two or more people, and finally let us wait for another opportunity to show our talents.Of course, opportunities also come with risks. If the case cannot be solved, it will be like the "scavenger project", which will make people frustrated and embarrassing. I put down the phone, and Dabao, Lin Tao, and Chen Shiyu walked into the office. I took a sneaky look at the three of them and said, "Master has checked the post." Lin Tao ignored me, turned around and went to the bathroom to straighten his wind-blown hair.Chen Shiyu looked warily at the computer window I opened.Only Dabao looked terrified: "Ah? No... no way? Ask... did you ask me?" Dabao would stutter when he was nervous. I was amused by him and laughed, and said, "Let's go! The murder case in Qinghua County." Dabao asked habitually, "How many?" I held up two fingers, picked up the investigation box, and walked downstairs quickly. Qinghua County is under the jurisdiction of Qingxiang City, located in the north of our province, at the junction of the three provinces. Compared with other peripheral counties, the law and order in Qinghua County is relatively good.I have been working for several years and only come here two or three times.However, in my impression, there is no case in this county, and one case is astonishing.Although the number of cases is not large, the detection rate is not high, and there are many difficult murder cases.Thinking of this, I can't help but feel a little worried. At the intersection of the expressway, Zhao Wenzheng, the deputy director in charge of criminal investigation of Qinghua County, was waiting for us sweating profusely.He is an old criminal policeman. Although he is less than fifty years old, he already has nearly thirty years of criminal police experience.Moreover, he is bold and resolute in his actions, and has won the respect of his peers in the province. "Director Zhao is here in person?" I got out of the car and greeted him. Director Zhao said: "Grandma, it's really unlucky. I don't know which reporter happened to pass by the scene, slipped into the cordon, took a photo of the scene in the small window behind the scene and posted it on the Internet. Get angry at me." "Been secretly photographed?" I laughed and said, "It's not a big deal, isn't there such a thing as being secretly photographed? As long as it doesn't get a bloody title, it will be fine. Last time there was a news that attracted much attention. In the incident, when our forensic doctor went to the hospital ward to examine the wounded, he was secretly photographed by a reporter. Isn’t this a normal thing? Forensic doctors have to do this job every day. But this reporter He is much smarter than the simple us. He added a caption to the photo, and then said that there are police guards outside the ward 24 hours a day, preventing the injured from communicating with the outside world. This is bloody, a very simple case , it was hyped as a huge shady scene. Haha!" "Oh? There is such a thing." Director Zhao immediately regained his mental balance, and said, "But this time the scene was more bloody, and the death of the deceased was more miserable. So when this photo went online, it attracted countless attention. The social impact is pretty bad." "Let's not be afraid of how bad the social impact will be. After all, the case has already happened. What we have to do is to solve the case as soon as possible, so that bad things will turn into good things." After thinking about it, I asked, "Is the scene bloody? How bloody?" Director Zhao nodded, with an unconcealable sadness on his face: "Oh, two old people, their faces are gone." "Ah?" Dabao was taken aback, "The face...the face is gone?" Director Zhao shook his head, sighed, and didn't answer any more. He turned around and got into the car, leading us to the murder scene. The vehicle drove eastward along the village-to-village road, and after leaving the county town, there was a plain in sight.There seems to be no concentrated villages here. Every household has built houses on both sides of the road, and behind them is their own homestead. On the bumpy car, I opened the file given to me by Director Zhao and looked through the documents of the two victims.The male deceased was Zheng Qinghua, a native of Qinghua County, who was 81 years old this year.According to the investigation, the old man is in very good health and can still do his own farm work.The female deceased was Zheng Qinghua's wife, Zheng Jinshi, who was 79 years old this year and married into the Zheng family from a neighboring province more than 50 years ago.Zheng Jin's body is also very healthy. At such an old age, he has almost never been to the hospital. "If it hadn't been for the tragic murder, it is estimated that they could live for another ten years." Dabao said. "Life and death are fate, wealth and honor depend on God." I sighed. Soon, we arrived at our destination. Under the guidance of Director Zhao's car, the police car got off the village road and stopped at the door of a house beside the road.This is a parking lot temporarily rented by the police, and several police cars were parked in sevens and eights.On the opposite side of the road from this family is a house surrounded by a cordon, which should be the scene. It may be because there were mistakes in the protection of the scene before, but now the peripheral protection of the scene has been significantly strengthened. There are two policemen in police uniforms guarding each corner of the warning belt, either civilian police or students wearing epaulettes. Police Association. Director Zhao stood by the road, pointed to the houses on the spot below, and said: "Today is Monday, and Zheng Xianfu, the second son of the two old people, will come to visit them every Monday. This is considered a greeting in ancient times." This morning, when Zheng Xianfu went to see the old man's house, he found that the gate was open. After entering the scene, he found that the two old men were both killed, so he called the police. Our forensic doctor just passed a simple autopsy and identified two The old man was killed last night." The house on site is located in the north of the road, the terrain is lower than the roadbed, and the gate is more than ten meters away from the roadside.The ground in front of the door is gravel and may have been used as a front yard.Standing on the side of the road, you can overlook the overall structure of the house.This is a small courtyard with a single door. Entering through the gate, there are pigpens and chicken coops on the left; directly opposite is a relatively large living room; on the right is a small room, which is shared by the bedroom and the kitchen according to the investigators. In the room, the door is the stove, and the inside is the bed. "How are these old couples?" Chen Shiyu asked the investigators.I know that it will be more beneficial for exploration discovery and on-site analysis to understand some preliminary investigation conditions. "Hmm." The investigator frowned and said, "Your question is really not easy to answer. If we look at it based on our investigation, you must be an ordinary person." "What's the meaning?" "Generally, when investigating a person's character, behavior and handling of affairs, most of the situations are ordinary people's situation." The investigator said, "It's just that some people say it's good, and some people say it's bad. Few people agree that this is a good old man, or reflect This is a big villain. People, living in this world, there will always be people who are closer and people who are more distant." "It makes sense." I sighed. "No wonder people say that although investigation and criminal technology are the same department, the research content is quite different. We are natural sciences, but investigation is social science." The investigator went on to say: "The only thing that is more consistent is that the old couple have a very good relationship. Over the years, almost no one has seen them quarreling. In this regard, they are a role model for the whole village." "That is to say, it is impossible to kill people because of love and hatred, right?" Chen Shiyu asked. "At such an advanced age, you won't have any hatred, right?" Lin Tao said, "Of course, you still asked this question very well." Dabao said, "Oh, that's not necessarily the case. My last case..." "Then, is there any obvious contradictory relationship?" I interrupted Dabao's quotes, "Has the nature been determined?" "I invite you to come, I'm afraid it's mainly to solve the problem of nature." Director Zhao interjected, "There must be no obvious conflicts, but it's hard to say whether there are invisible conflicts. So far, we have no clue, and the investigation has not yet determined the direction. .” It is not uncommon for invisible contradictions to lead to murder.It may be because of the personality of the perpetrator, killing people because of trivial matters; or because of secrets that cannot be announced to the public, the contradiction is hidden in the stomachs of the murderer and the victim; existence, these situations occur from time to time. I nodded, greeted Lin Tao and Dabao, and walked down the gravel road to the door of the scene house. Several technicians were fingerprinting the door. "Did you find anything?" Lin Tao asked. The technician shook his head and said: "This kind of door is an old-fashioned side-by-side door, and it is locked inside by a latch. But the latch is just the rough surface of sawn wood. The carrier is not good, and the possibility of leaving fingerprints is small." "But the door is made of smooth wood, isn't it?" Lin Tao asked. The technician said, "No. Not only no fingerprints, but no blood." At this time, I had already entered the courtyard and walked around the door of each room.In order to avoid being photographed and uploaded again, the body has been transported away, but it can be seen that there is a lot of blood in the house that is used as the kitchen and bedroom, which is shocking. "There was a lot of blood at the scene. It can be inferred that the deceased died of blood loss." I said, "In that case, there must be a lot of blood on the murderer's body and hands. fingerprints, but it will definitely leave blood on the door. Since there is no, it can only mean that the door is open, and he does not need to open the door." "You mean that the murderer is an acquaintance, knocked on the door and entered the house, and did not close the door?" Lin Tao said. I said: "It's hard to say, but it's definitely not breaking the door, because there is no trace of moving from the outside on the door latch. Either knocking on the door or sneaking in. It depends on the time of the case. Is the deceased's house Closed the door and went to bed." "The central site is the kitchen and bedroom." Director Zhao's voice was vague through the mask, "The gate of the courtyard is next to the door of the kitchen and bedroom. After entering the gate, turn right and you will enter the door of the central site." After speaking, Director Zhao pulled me into the center site.Pointing to a small square table at the entrance of the center, he said: "The body of the female deceased was lying on this square table. You can see that there are a lot of splattered blood around it." After finishing speaking, he turned around and pointed to the stove opposite the square table, and said, "The male deceased lay on the firewood pile next to the stove, and there were also a lot of blood splatters on the stove. In addition, there were splashes, throwing blood on the entire center site. There are bloodstains in the form of throwing, dripping, and wiping, and it can be inferred that the victim and the murderer had a struggle." I looked at the small square table at the entrance, then looked at the gate and the courtyard wall outside the entrance of the center site, and said, "That's not right. The female deceased was killed at the entrance of the center site. Judging from the blood on the scene, there was a lot of splatter. Spray The blood splatter will not only splatter into the house, but also splatter outside the door. But why is there no blood at all outside the door? The position of this door is like a dividing line. There is a lot of blood inside the door, and no blood outside the door. Blood, but the door is open, it doesn't make sense." Director Zhao frowned, rubbed his chin, and said, "It makes sense, we really didn't find this problem before. How about it, I'll send someone to investigate. But how do we investigate this problem?" I smiled and said: "It's very simple. The blood is at the door, and there is something to block it so that it will not splash outside the door. Of course, if it is the murderer's body, it is impossible to block it so completely, so I think it will Could it be a door curtain or something?" Director Zhao nodded, turned and left. There was a large amount of blood on the small square table at the scene of the center.I took a hemostat out of the survey box and rummaged through the pool of blood.Soon, I found some broken hair and some bone flakes from the pool of blood.Obviously, these were the hair and skull fragments of the deceased. I gradually understood why Director Zhao said that the faces of the two old men were gone. Lin Tao looked left and right at the light switch above the small square table, and said, "There are no blood fingerprints on this light switch either. The switch has been polluted by sprayed blood, so sweat fingerprints can't be mentioned." I looked up at the energy-saving lamp in the middle of the roof of the room, and said: "The light is on, which indicates two problems. One is that the time of committing the crime was last night, and the other is that the victim is more likely to turn on the light. Since the murderer did not Turn off the light, so there won't be any bloody fingerprints left." "Zheng Jin is lying on his back on this small square table, his buttocks are outside the edge of the square table." A technician who is familiar with the situation at the scene briefly introduced the state during the initial survey at our request, "that is to say, the upper body was pressed on the table. Injured, and Zheng Qinghua curled up by the stove in the right side lying position." "You mean that the female dead was attacked in a fixed position, and the male dead died after fighting, right?" I said. "Yes," said the technician, "that's what I mean." "Is there any movement at the scene?" Chen Shiyu asked. "No, the whole site has not been turned at all." The technician said. "Can the case of embezzlement be ruled out?" I asked. The technician said: "It seems that it can't be ruled out. There seems to be some clues on the task force. After you finish the autopsy, you can ask them again. I heard that they think that if someone they know well commits the crime, then they will be Knowing where the valuables are, there is no need to rummage through them, just go and get them. As you can see, the old couple have nothing but money, so they probably don’t have a lot of money.” "Oh." I saw bloodstains at the scene of the center, but based on the body position and bloodstains of the deceased, it can be concluded that the murderer held down the female deceased and slashed to death, and then had a short fight with the male deceased in the house. Because of the disparity in strength, the male deceased also He was seriously injured and died.The reconstruction of the center site can almost be finalized, but even if it is finalized, it will not provide any breakthrough help for the characterization of the criminal and the analysis of the case. "Is everyone sure that the murderer's entrance is at the gate?" I asked the technician. The technician nodded resolutely, and said: "This is absolutely certain. The surrounding courtyard walls are more than two meters high. If someone climbs, we can easily find climbing marks on the walls. When we first arrived at the site, first The surrounding walls were inspected, and there were iron railings on the surrounding windows, no one could get in, and the tops of the courtyard walls were also intact, and no signs of climbing or trampling were found.” "If someone climbs the wall and is not discovered by us, there are only three situations: one is that the time between the investigation and the incident is too long, and the traces disappear; the other is that it rains heavily, and the traces are washed away; Skip directly. These three situations are not in line with this case, so we can be sure that the murderer came in and out." Lin Tao gave me a popular science on trace inspection and professional knowledge. "And through our investigation," an investigator said on the side, "the old couple have a particularly strong sense of vigilance. Ten years ago, a thief broke into their house through the wall and stole more than 100 yuan. Since then, The old couple guarded against people everywhere, and spent money to raise the courtyard wall. So I personally prefer the murderer to be an acquaintance." "Acquaintance." I pondered, "Okay, I'll go take a look outside." I walked out of the central scene and walked to the entrance of the living room on the north side of the courtyard of the deceased's house.The living room is very tidy, without any signs of turning over.Because the living room didn't look like someone had come in, the on-site survey personnel didn't focus on it, and all the survey boxes and survey equipment were stacked in the center of the living room. I walked around the furniture placed around the living room, and suddenly found something strange.On the surface, the furniture in the living room was neatly arranged, and the items stored in the cabinets were well arranged, and there was no abnormality.In the southeast corner of the living room are some agricultural tools, including shovels, rakes, and brooms.It is now April, and the busy farming has not yet started, so there is some dust on these tools, and there is also a lot of dust on the ground where the tools are placed.But among these dusts, there is a clean blank area. It is conceivable that there should be something placed here. I carefully removed several tools one by one. Every time I removed a tool, I could see a blank area of ​​dust on the ground where the tool was placed. Only the position where the big broom was located was evenly dusted on the ground. I quickly called Lin Tao and pointed out my discovery to him. "This means that the broom has been touched." Lin Tao said, "But no fresh fingerprints can be detected on the handle of this broom." "How could it be? How could there be no fingerprints after being touched? Did you wear gloves?" Chen Shiyu asked. Lin Tao smiled and said: "Fingerprints are the same as DNA. Things that have been touched by people may leave fingerprints, but this does not mean that things that have been touched by people will definitely leave fingerprints. No fingerprints, or The potential for leaving unidentifiable fingerprints is very high and there are many factors that contribute to this." "Oh, so." Chen Shiyu looked at the broom. The end of the broom was dirty, with various unidentified objects stuck to it, and some burn marks, but no blood-like stains were seen. "There is no blood on the broom handle or on the broom, which means it has little to do with the case." I said, looking up and thinking.Suddenly, I was attracted by a white light in front of me, and shouted: "Little Feather, call the technician." Because Dabao can't remember Chen Shiyu's name, Chen Shiyu now has a new nickname: Little Feather.Chen Shiyu turned his head and walked out of the room to find a technician. "Did you turn on the lights in this room?" I pointed to the faint fluorescent lights on the ceiling. The technician shook his head and said, "No, we're not going to touch the light. When we got to the scene, it was early morning and there was no need to turn on the light. However, we didn't notice that the light was on. of." "The reporter who took the sneak shot didn't know how to turn on the light?" I asked. The technician said: "Impossible. He took pictures from the window outside the house and did not enter the scene." "What about the informant?" I asked. "Has the informant come to the living room?" "No." The investigator said, "The reporter can see Mrs. Zheng Jin lying on the small square table at the entrance of the center at the gate of the courtyard. There is no need to go to the innermost living room." Another technician who swiped his fingerprints on the light switch said: "I have seen the fingerprints here, and they are consistent with the fingerprints we collected on the corpse just now. They should be made by the deceased man himself." "Oh." I was a little disappointed, "It seems that when the murderer entered the scene, the deceased was still asleep. Maybe he came to the living room to chat for a while. However, why didn't he kill the man in the living room instead of the bedroom? If the murderer and The deceased left the living room together, why didn't the deceased turn off the light in the living room?" "It's hard to say." Dabao said, "Maybe the deceased forgot to turn off the light when he was sleeping? Maybe it's because he habitually left the light in the living room unturned? Maybe the murderer turned on the dead man before he fell asleep." Come in? I don’t think this will have much effect on case analysis.” I nodded and said, "Then there's nothing to see at the scene. Now we just need to take more blood. I hope the murderer was injured and bled at the scene, and we happened to get his blood again. That's good." I knew this job was going to be a needle in a haystack, so I didn't hold out much hope and just did it as usual. "By the way, there is a related scene outside the house. Why don't you go and see, Section Chief Qin?" said the post-forensic doctor of Qinghua County. "Oh? Related to the scene?" My eyes lit up, and the forensic doctor quickly walked out of the gate of the courtyard, followed the path outside the courtyard wall, and walked outside the courtyard wall on the north side of the house.This location is invisible from the road on the south side of the house because it is blocked by the whole house. There was a pile of ashes at the base of the wall. "What is this?" I squatted down and turned the ashes with the hemostat in my hand. The post-forensic doctor said: "After we arrived at the scene, we searched the periphery of the scene and found this ashes first. We thought it was suspicious, so we asked investigators to investigate, and at the same time screened the whole pile of ashes. Investigation. The investigators found two points. First, this location is where the old couple piled up straw. Because the old couple still burn firewood for cooking, they can use straw. The yard is small and there is no place to stack it. It is not easy to be covered by the eaves It was drenched by the rain, so it was piled up here, and a lot of straw was piled up all year round. Second, at 7:30 last night, a family a few hundred meters further north of the deceased’s house saw a fire here.” "Are you sure it's half past seven?" I asked. "Sure." The forensic doctor said later, "because the family just finished watching the news broadcast." "It must be that after the murder, he wanted to burn the house and destroy the corpse." Dabao said, "This is what many burglary and murderers do to destroy evidence." "That's right." Lin Tao said, "It's half past seven, the old couple should not be asleep yet, right?" "I asked just now, and the survey shows that the old couple have a very regular schedule." Chen Shiyu said, "Usually eat at six o'clock, then do housework at home, go to bed around seven thirty, watch TV, and go to bed at nine o'clock." "If the fire started at 7:30, then the murder was probably around 7 o'clock." Lin Tao said, "At this time, the old man is doing housework at home, so it can explain why the lights in the main room are still on." "No." I said, "don't you remember? There is a hearth next to the dead man, and there are a lot of straw piled up next to the hearth. If you want to destroy the body, why don't you light a fire in the kitchen? I came out of the house and wanted to use this small Isn’t it idiotic to set fire to the whole house with piles of straw? The murderer has no common sense.” "Yes." The forensic doctor later admitted, "We thought it was to destroy the corpse at first, but after thinking about it, it is easy to catch fire wherever he touches the house, which is much stronger than outside the house." "Is it possible that they wanted to burn something?" I said. "Like a murder weapon? A bloody coat?" "We have also considered this." The post-forensic doctor said, "No matter what is burned, including clothes, there are metal rings, so we should sift it out of this pile of ashes, but nothing was sifted out. So we think , the murderer is simply burning this pile of straw." "Why is that?" I was lost in thought. The forensic doctor later said: "It is also possible that it has nothing to do with the murder of the deceased, maybe the murderer has a problem with his IQ." "Let's not waste time." Dabao said, "Let's go to the funeral home now? Get in the car first, and I'll go find a toilet. I seem to have eaten breakfast." 看着大宝捂着肚子跑开的窘相，我笑着说：“懒驴上磨屎尿多。” 前期到达殡仪馆的法医已经做好了准备工作。郑金氏的尸体已经被放在了解剖台上，而郑庆华的尸体则被摆放在一架运尸车上，停在解剖台一侧。 我看了一眼尸体，心头一揪。 我经常说，法医会经历比医生更多的心理考验。虽然同样是面对死亡，但我们面对的死亡更震撼人心。有的是死状甚惨，有的是腐败不堪，有的是本不该死亡的花季生命突然陨灭。即便是看惯了各种残忍的死亡方式，但是眼前这个老人的死状还是让我揪心了一下。 和赵局长说的一样，老人已经没有脸了。 尸体仰卧在解剖台上，颈部以上一片血肉模糊。从耳屏前的皮肤褶皱还可以看得出，这是一个古稀老人。但是从两侧颧骨开始，中间的面容已经不复存在了，取而代之的，是鲜红的皮下组织、黄色的脂肪和惨白的颅骨。血肉模糊中，还有一些白色的脑组织嵌在其中。 我麻利地穿上手术衣，戴上手套，走到尸体旁边，拉扯了一下脸部四周的皮肤，想把死者的面容还原。显然，那是徒劳。在这一片挫碎了的面部组织中，我甚至无法分辨哪一块是鼻子，哪一块是眼睑。甚至眼球都已经爆裂，在眼眶里还看得见已经塌陷了的黑白相间的眼球壁组织。乍一眼看上去，这确实是一个没有面孔的尸体。 “这记者够缺德的，”大宝说，“这么血腥也往网上挂。” “这是什么工具形成的？”林涛的提问把我从揪心的思绪中扯了出来。 我用止血钳把面部缺损部位周围的皮肤拼了拼，说：“可以在还没有缺失的面周皮肤上看到条状的创口，工具倒是没什么问题，是砍器，很锋利。而且，刃长应该接近于死者面部的长度，所以，应该就是普通的菜刀吧。” “菜刀能把人砍成这样？”林涛问。 我点点头，说：“这样的损伤不是一次形成的，而是数十次形成的。死者处于一个固定的位置，被反复砍击面部，多处创口融合，皮肤等软组织挫碎，就变成现在这样了。” 林涛可能是想到了峰岭市的案件，说：“砍击这么多次，难道又是精神病人作案不成？” 我从头到脚看了一遍尸体，说：“损伤、工具什么的，对于这个案件应该不难。至于是不是精神病人作案，没有太多依据。上次的案件是多个不合理的点结合在一起，可以推断是精神病人作案，这个案件则不行。我感兴趣的，倒是死者的衣着。” 郑金氏下身穿着一条棉毛裤，光着脚，脚上还有一双没有提起后跟的布鞋。上身穿着一件棉毛衫，外面套了一件旧时的马褂儿，马褂儿在腋下的位置系了个扣子，其他的扣子都没有扣。 “死者的衣着，我们一眼就能看得出，是入睡时的衣着。”我说，“可能是听见有动静，披了一件外套、趿拉着布鞋就出门了。” “对。”大宝说，“这个衣着反映的就是这个情况。” “那老头儿的衣着呢？”林涛问。 我和大宝走到运尸车旁，拉开尸袋，暴露出郑庆华的尸体。 最先映入眼帘的，是郑庆华的一张血肉模糊的面孔。和郑金氏不同，郑庆华的面部皮肤并没有破碎，但是也一样无法辨别面容。除了黏附大量鲜血外，那青紫肿胀的眼眶和完全塌陷的鼻子、上颌骨，让一张脸变得面目全非、扭曲丑陋。 我们检验了郑庆华的衣着。他下身穿着一条布外裤，里面是一条棉毛裤，两侧棉毛裤的裤腿卷到膝盖，只有脱掉外面的布裤才能看见。布裤的裤带没有系，拉链也是开的，只有纽扣扣住了裤腰。郑庆华也是光着一双脚，没有穿鞋子，但是据技术员反映，死者的一双鞋都脱落在尸体原始位置周围。上身穿着一件棉毛衫，外面披着一件没有扣扣子的衬衫。 “他也是睡眠衣着，听见动静起床的。”大宝说。 我点点头，说：“准确地说，他正在洗脚，然后套了一件外褂和外裤。” 大家看了看郑庆华卷起的棉毛裤腿，都点头认可。 解剖室里突然沉寂了，大家都在暗自思考整个现场过程。 沉默了一会儿，我说：“先常规尸检吧。” 大家又都默不作声地开始尸检，可能是因为死者的惨状震撼了大家的心灵，也可能是因为大家都和我一样，总觉得在案件过程中，有一些解释不过去的地方。所以，整个解剖室里除了器械碰撞的声音，再也没有其他的声响。 解剖工作进行了五个小时。 两名死者都死于重度颅脑损伤。郑金氏是面部遭砍器多次砍击，导致面颅崩裂，脑组织挫碎而死亡。郑庆华虽然头部、肩部有一些砍创，但是这些砍创不足以致死，他的致死原因是左侧面部遭钝性物体反复打击，导致全颅崩裂。 两名死者的肢体都没有约束伤和抵抗伤，可以看得出凶手和死者的体力悬殊很大。我们之前看现场多处血迹认为有搏斗过程，也经过尸检否定了。其实，只是郑庆华在屋子里逃避、躲闪，凶手追在身后砍击而已。郑金氏全身没有其他损伤，她应该是直接被砍倒在小方桌后，凶手连续砍击导致她迅速死亡。 最后，我们打开了死者的胃部。 “胃内容物的形态已经不是很清楚了，应该是消化了两小时以上了。”大宝说，“要不，我们打开看看死者的肠内容物？” 常规解剖是不需要打开肠腔进行检验的，尤其是对这两具尸体，我们的解剖工作已经持续五个多小时了。这时候的我们，早已精疲力尽。 我点点头，说：“死亡时间还是能再准确一些比较好。而且老两口生活很规律，每天晚上六点吃饭，有了固定的末次进餐时间，通过胃肠内容物判断死亡时间才是最准确的办法。” 人的小肠有五到七米，我们需要把整个小肠从肠系膜上慢慢剪下来，然后平铺在解剖台上，再把整个肠管剪开。这项工作，又持续了近两个小时。 通过胃肠内容物迁移的距离，我们判断死者是末次进餐后两个半小时内死亡的。 “八点半才死亡？”我说。 “不对啊。”后法医说，“七点半就起火了，八点半才死亡？不应该是先死亡，再点火吗？难道这一堆火，和死者的死亡真的没有关系？” “还有，还有，我一直在思考一个问题。”大宝说，“为什么要用锐器杀老太太，又用钝器杀老头儿？有锐器为啥要费劲儿用钝器？还有，那个钝器应该是什么？” “工具没问题。”后法医说，“我记得男死者倒伏位置的旁边有个水桶，水桶里有块砖头，我们开始就认为这块砖头可能就是第二种工具。” “我的脑袋也已经一片糨糊了。”我看了看窗外越来越浓的夜色，说，“不如我们先吃饭，再去专案组捋一捋思路？” “鉴于刚才秦科长他们法医组的介绍，现在初步可以排除溜门入室盗窃的可能性。依据是时间太晚了。”赵局长说，“如果是溜门入室，那凶手必须是在死者习惯的关门时间前进入，这个时间经过调查是五点半。那么他没必要一直等到八点多才动手。” 刚才，我们拖着疲惫的身躯，赶到了专案组，对死者的死因、致伤工具、死亡时间和致伤方式进行了介绍。 这时候的我，坐在专案组里，脑子里仍然是一团糨糊。但我知道，很多时候，即便自己没有理出思路，和别人多说多谈，思路也会清晰一些。我知道由于网上炒作的缘故，已经不可能给我们留下整理思路的时间，我们必须第一时间确定侦查方向和侦查范围。 “那么，现在大家都有什么看法？”赵局长组织起讨论。 后法医率先发言：“我觉得这是一起因仇杀人的案件，凶手和死者是熟人。凶手半夜敲门入室，见人就砍，杀完人后离开。” “那门口的火堆呢？”一名侦查员说，“我们调查的时间和你们法医推断的时间对不上啊。怎么会先起火，后死人呢？会不会是你们法医推断错了？” “技术工作和侦查工作是相辅相成的。”我插话道，“即便调查的证据确凿，但是我们也必须坚持自己的技术所见。如果被侦查结果绑架，势必会造成技术推断的错误。” 大家都默不作声了。 陈诗羽说：“火堆可以和案件无关。但是现场客厅的灯是开着的，如果是寻仇杀人，只需要进入中心现场就可以了，没必要走到院落最里面的客厅去开灯啊。” “对，我也认为这一点解释不过去。”赵局长说，“客厅的灯是一个疑点。如果这样分析呢？凶手和死者是熟人，知道死者家钱财的位置所在。所以凶手敲门入室后，直接杀人，然后戴手套进客厅，在客厅的某个地方拿走了钱财。” “如果是这样，那么凶手肯定是去找特定位置的钱财。”我说，“因为现场没有任何翻动的痕迹，怎么看都不是侵财现场。” “如果我的分析不错，那么凶手只有可能是死者的二儿子。”赵局长说，“贼喊抓贼的事情多了去了。这个二儿子很可疑，你还记得门帘吗？” 之前，我们通过中心现场门外没有血迹，判断中心现场房间应该是有个门帘的，看来赵局长发现了什么。 赵局长接着说：“我们拐弯抹角地问了死者的二儿子情况，没有反映出任何情况。后来，我们在中心现场的猪圈里找到了门帘。这个门帘应该是挂在中心现场门上的，门帘是被随意抛甩在猪圈里的。门帘是塑料布做成的，上面有死者二儿子的指纹。” “血指纹吗？”林涛问。 赵局长摇摇头，说：“汗液指纹。” “汗液指纹很正常啊。”林涛说，“因为是他最先发现的，是他报案的，他肯定要掀起门帘进门，才能看得见尸体啊。” “他取下了门帘，扔进猪圈，用意何在？”赵局长说。 大宝说：“说不定是他看到尸体后，慌乱中取下门帘，扔进猪圈呢？” “我也觉得不太像是亲人作案。”我说，“一般亲人作案，案后都会有明显的愧疚行为。比如在尸体上盖被子，用毛巾盖脸什么的，这都是愧疚行为。但这起案件有明显不同，凶手不仅没有愧疚行为，反而通过行为反映出他的仇恨心理。毕竟尸体毁坏严重啊，尤其是面部，砍击面部一般都出于仇恨心理，儿子和母亲有那么大仇恨吗？” 全场沉默。 我接着说：“而且我思来想去，总觉得案件现场有一些问题，但问题何在，我还说不好。不如你们先审查一下他的二儿子，我们回去捋一捋思路？” “那个门帘在哪儿？”林涛不用在解剖台上干体力活，所以这个时候比我们精神多了，“我们去做做潜血实验看看，说不准能发现点儿什么呢？” 躺在宾馆的床上，现场在我脑海里一一浮现：门外的火堆、菜刀、砖头、死者的衣着……我试着将这些碎片组合在一起，想把整个案件现场还原。 时钟还在“嘀嘀嗒嗒”地走着，我脑海里的碎片慢慢地拼接了起来。 第二天一早，我带着自信的微笑，精神抖擞地走进了专案组会议室。 可能是审讯经历了一夜毫无收获，侦查员们的脸上都是沮丧的表情。 我开门见山：“昨晚整理了一下思路，现在主要有两种意见。一种是熟人敲门入室，杀人后，取财。第二种是熟人敲门入室，因仇杀人。这两种可能性的共同点是敲门入室，因为大家认为那个时间点不可能溜门入室，对吧？” Everyone nodded. 我说：“但是大家忽略了一个非常重要的问题，这两种可能性都不能解释。” 大家又都露出好奇的眼神。 我说：“两名老人都是在中心现场就寝，对吧？凶手不管怎么进入中心现场，杀人都要有先后顺序，对吧？狭小的空间里，不可能进来两个凶手，对吧？” 大家又纷纷点头。 我接着说：“根据法医检验，两名死者的头部都处于固定位置，被连续打击。这样打击，是需要一定时间的。那么凶手在杀甲的时候，乙在做什么？” 大家开始议论纷纷。 我说：“郑金氏死于锐器砍击，郑庆华死于钝器打击，但是郑庆华身上也有锐器伤。为什么凶手把郑庆华砍倒后，换了并不顺手的砖头呢？为什么不用锐器直接砍击呢？只有一种可能，他的锐器出现了问题，卷刃了，或者刀刃和刀把儿脱离了。既然工具出现了问题，他就不方便再用锐器杀人，所以我们推断凶手是先杀女，再杀男。刃柄分离的可能性还是很大的，因为我们判断郑庆华并没有和凶手进行正面冲突，也就是说，没有搏斗，只有逃避。在追逐砍击的过程中，因为有大力的挥舞动作，菜刀的刃柄是很容易分离的。而且，我们在尸体上，也没有发现卷刃刀形成的砍痕。” 大家点头认可，赵局长拿起电话，走出门去。 我清了清嗓子，等赵局长重新返回会议室后，接着说：“既然在门口砍击了郑金氏，而且是连续砍击，几十刀啊，那么长时间，郑庆华在做什么呢？从郑庆华的衣着情况看，郑庆华应该是正在洗脚的时候，穿了外衣、外裤。那么，难道他看到自己的妻子在被砍击的时候，还能从容地穿衣服吗？你们调查不是说两人感情极好吗？这种危难时候，郑庆华会坐视不管？” “有道理啊！”赵局长恍然大悟，“我们确实没有考虑到这个问题。” “不管凶手是为了什么杀人。”我说，“开始我们都先入为主地认为凶手敲门入室，进了门帘后杀人。现在怕是要推翻这个推断了。” “那么，你是什么意见呢？”赵局长问。 我说：“开始我也是百思不得其解，但是我联想到了屋外的火堆，客厅的灯光，现在总算是想通了。” 我喝了口水，接着说：“根据我们发现的各种痕迹、情况，综合起来，只有如下一种可能，能解释现场的所有现象。凶手在七点半的时候，点燃了屋后的秸秆堆。点燃后，火堆应该有火光、有烟味。或者凶手也可以喊叫着火了。那么，两名老人会是什么反应？” “起床灭火。”大宝说。 我说：“两名老人都是处于已经上床了的衣着状态，郑金氏披了件外衣，郑庆华正在洗脚，穿了外衣外裤。为什么会出现这样的情况？” Everyone shook their heads. 我说：“女人可能是披了外衣出门确认着火的情况，而男人正在洗脚，因为火在屋外，也不至于十万火急，所以他有时间穿好外衣外裤，去灭火。那么，去灭火需要工具吧？灶台旁边有水桶，当然，水桶肯定不够，还需要扫帚之类的东西。大家忘了客厅里的工具吗？那里面的扫帚就有被移动的痕迹，而且有少量被烧灼的痕迹。” “你是说郑庆华去客厅拿了扫帚去灭火？”赵局长说。 我点头说：“两名老人感情很好，肯定会互相帮助。郑庆华拿着扫帚在屋后灭火，而郑金氏拎水灭火。郑金氏泼完水后，肯定要回到中心现场取水，那么这个时候，大门肯定是开着的。凶手就是这个时候进入了现场，在中心现场直接砍击郑金氏，郑金氏倒在小方桌上后，凶手连续砍击她的面部，导致她死亡。” “对啊。”大宝说，“解释不了同时杀害，就应该用逐个击破来解释。” “那一小堆秸秆烧不了多少时间。”我接着说，“郑庆华扑灭火焰后，肯定还在纳闷郑金氏为何没再拎一桶水出来。他回到家，把扫帚放到原处。这个时候，他可能听见了异响。所以，他连灯也没关，就来到了中心现场。凶手可能此时还在砍击郑金氏，也可能潜伏在中心现场。所以郑庆华进入中心现场后，凶手继续追砍郑庆华，直到郑庆华被砍倒在灶台附近，而此时郑庆华并没有死，凶手的刀刃可能脱离了刀柄。所以凶手操起灶台旁边的一块砖头，打击郑庆华的头部，导致他死亡。然后，凶手把砖头扔进还有小半桶水的水桶里，离开现场。” “漂亮！”赵局长叹道，“这个分析，就把之前我们的很多疑惑全部解释了，那么，通过现场重建，能不能框定一下侦查范围呢？” “既然不选择敲门入室，而预谋了这种计策来骗开死者家门，肯定不会是很熟悉的熟人了。之前你们调查没有明显的矛盾，那么就应该是隐形矛盾。”我说，“这不太好调查，但是有个问题，如果死者屋后着火，连几百米外的村民都有所发现，他的邻居就一点儿都没有发觉吗？” “有道理！”赵局长说，“郑家只有一家邻居，两家房子不远，按理说，他们应该知道着火的情节啊，可是邻居的老两口双双否认知道隔壁着火。” “否认的话，就很可疑了。”陈诗羽说。 林涛摇头，说：“之前那个门帘，后来调查死者二儿子的时候，他承认是他发现现场的时候，激动惊慌之下碰掉落了，后来就随手扔在对面的猪圈里。这个应该是事实。我们昨晚对整个门帘进行潜血观察，发现了一枚血指纹。” “有证据？”我惊讶道，“那你不早说？有指纹还怕破不了案吗？” “你有所不知。”林涛说，“前期调查，侦查人员取了所有可能和死者有关的，有作案时间的人的指纹，包括他的邻居那老两口的指纹。但是通过昨晚的通宵比对，全部排除。” “但是既然有潜血指纹，肯定是凶手留下的呀。”我说。 “我觉得邻居很可疑。”大宝说。 “哦？”我说，“为什么可疑？说说看。” 大宝说：“你还记得昨天看完现场后，我突然肚子疼去找厕所吗？现场的厕所肯定是不能用的，所以我就准备在屋外就地解决。不过，我走到屋侧的时候，看到有个厕所，看砖头的成色，应该是新建的。准确地说，不是什么厕所，就是用砖头垒了半个人高，三面墙，是个临时的厕所吧。” “现场的院子里好像没有厕所，那么这个简易厕所应该就是死者家的厕所。”我说。 大宝点点头，说：“我也这么认为。但是我蹲在那儿上厕所的时候，抬眼就能看得见邻居家的厨房。” “厕所对着厨房？”我说，“看来这死者也不是什么善茬儿啊，把厕所建在人家厨房旁边，太不厚道了吧？” “就是啦。”大宝说，“这一举动，肯定是有挑衅意味的，而调查并没有发现死者和邻居有什么矛盾。那么肯定是有隐形矛盾存在喽。” 话刚落音，赵局长的电话突然振动了起来。