Chapter 10 Chapter 9 The Red Raincoat

"What is the cause of death?" Family members are questioning.This is a complaint case. In fact, I don't like going out to investigate petition cases. Since the Ministry of Public Security proposed a large-scale reception, half of the work of the forensic department has been running around on petition cases.Although answering questions and investigating grievances are also the responsibilities of forensic doctors, but after handling so many petition cases, it is indeed difficult to encounter any unjust cases. What cheers me up is the sense of accomplishment in solving the case.

"It was said to be hemorrhagic shock at first, but we didn't see much blood!" The family member's question pulled me back from my reverie to reality. "Not hemorrhagic shock," I said. The deceased was an old lady in her seventies with five children.Normally, the children would blame each other, and no one would take care of the old lady.The old lady lives in the countryside alone, holding the subsistence allowance, and leads a hard life. One month ago in the morning, a villager found the old lady dead in the grove at the head of the village, her clothes in tatters.After investigation, some villagers seemed to have heard the barking of the old lady and the barking of the dog the night before, and went home to sleep without seeing anything unusual.The police first found blood stained with dog hair on the ten-yuan banknotes scattered around the old lady, then collected evidence from the wolf dogs in the village, and finally found the old lady's DNA on the mouths of two wolf dogs raised by a family.

The case seemed simple, but the family members filed an application for review. "Look," I wiped the wounds on the old lady's body with gauze, and said, "Although these wounds are very shallow, basically only injuring the dermis and subcutaneous tissue, the wounds are very large, and the area of ​​epidermal peeling has exceeded the entire body. Ten percent of the surface area. Although the blood vessels in the epidermis are not rich, the amount of bleeding is not large, but the nerves are abundant. Such a large wound will cause severe pain, so the deceased should have died of traumatic and painful shock."

The family members were silent for a while and said, "Can a dog kill a person?" I pointed to the wound and said: "There are strips of abrasions around the wound, and there are tear marks on all the epidermis sections. This is a typical animal bite. Apart from these injuries, there is no other injury. So, it is not killed by a dog." Yes, how did you die?" "The government's supervision is ineffective," said the family members, no longer dwelling on the cause of death, "shouldn't they bear some responsibility?" With a sullen face, I ordered Dabao to take the intern forensic doctor to sew up the corpse, and while taking off the dissecting suit, I said, "This is out of my control."

These families don't care how much pain their mother suffered during her lifetime, and care more about how much responsibility the government should bear, which makes me very unhappy.I silently got into the police car parked outside the door. "It took a lot of energy to mediate," said the chief of the police station sitting in the car. "The family that raised the dog promised to pay 200,000 yuan, but the family members thought it was too little, so they asked the government to pay another 200,000 yuan. The cause of death refused to accept this excuse and wanted more money."

"You see," I said, "they're not interested in the cause of death." I pulled out my phone, looked at it, and was surprised to see a dozen missed calls. "Master, isn't there going to be another accident?" The master made more than a dozen phone calls, and it was estimated that nothing good would happen. "I'm working on a case in the Yang Palace. Now there's another murder case in Yingcheng. I'm afraid it's more difficult. They already have one murder case that hasn't been solved this year. You can just go there now. Dabao and Lin Tao are waiting for you at the intersection of the highway."

I rubbed my stiffened waist just now, and thought to myself that people age every year. My lumbar muscles were strained before I was thirty years old. I don’t know if I am older, can I still be at the dissecting table? standing for so long. My lumbar muscle strain is afraid of driving, but it takes more than five hours to drive from my current city to Yingcheng, which really runs through the north and south of the province. Passing the exit of the provincial capital expressway, I saw Dabao and Lin Tao waiting by the side of the road with their investigation boxes. It was early winter now, and watching them stomp their feet in the cold wind, my mood immediately returned from the haze of being affected by those unfilial children to the sunshine.

"Go to the front service area and take a rest." I straightened my waist and looked helplessly at the two people who couldn't drive. "Why don't you think about it and go to get a driver's license?" I was refueling in the service area when I saw Dabao running over from the store. "Look, I won the lottery!" Dabao drank a bottle of drink and held another bottle, "Haha, I have never won a lottery before, this time I won a 'one more bottle'!" "I thought there was something good going on, I made a lot of fuss." I glanced at Dabao contemptuously, then turned to ask the staff at the gas station, "How much money is left in the gas card?"

The unit's car is issued with a fuel card, which is less than 2,000 yuan per quarter. With the soaring gas price, we will basically spend this amount within a month, and we will definitely not use the car for private use.After the fuel card is spent, we are faced with the approval of fuel invoices, which can only be reimbursed after half a year, which brings us a great burden.I have always wondered why it is so easy to report off the gas fee for those who use the bus for private use? "Six hundred and sixty-six yuan and eighty-eight cents." The toll collector looked at us in casual clothes and said eccentrically, "Enough for a round of fun."

"Ho Ho, it's an auspicious number to win the lottery again," Dabao said, "What a good day today?" "What a good day." Lin Tao heard the toll collector's implication, and said, "They're all dead." It seemed that the toll collector thought we were using the bus for private use, so he didn't like to talk to us, and I felt wronged for a while.After putting the fuel card in the passenger drawer, the back of my hand was scratched by the drawer lock. "Why do you have good things and I don't have good things?" I said to Dabao while using toilet paper to stop the bleeding.

"I think it's a good thing." Lin Tao took out a Band-Aid from the investigation first aid kit and handed it to me, and said with a smile, "It's broken, it's broken, the case is going to be solved." Yingcheng is a good place. When night falls, the streets are full of feasting lights.Many wealthy people regard Yingcheng as the back garden of the provincial capital. Coupled with the weak government supervision, Yingcheng has naturally become a place where filth is hidden. In a place like this, crime is bound to happen.Every year, several prostitutes are killed in Yingcheng, and there are many unsolved cases. Knowing that the local brothers are very busy now, in order not to burden them, the three of us ate a bowl of beef noodles at the roadside stall, and then went straight to the site in the east of the city. The case happened in the morning, so there were not many onlookers at night. In the cordon, the glass door of a beauty salon was closed, and there was a faint red light and strips of pale white light from inside. I knew it was the light from the survey lamp. After showing the on-site investigation certificate to the police in charge of on-site protection, we opened the door of the beauty salon. A bloody smell came to the nostrils. I rubbed my nose and said, "Hey, the smell is so strong, why don't you open the windows?" "The leaders of the provincial department are here." Ding Keming, head of the criminal police detachment of the Yingcheng Public Security Bureau, lowered his mask and said, "There are no windows here, and I am afraid that it will affect the effect when I open the door, so I have to hold back here." I looked with reverence at the policemen who had been working in such a harsh environment for nearly ten hours. "There is too much blood at the scene. We know that you are here. The body has not been examined yet." Qi Maosen, chief of the forensic department of the Yingcheng Public Security Bureau, walked to me and took off his gloves. He shook my hand and said, "We have been analyzing the shape of the blood here. " According to preliminary investigations, the deceased was the number one low-end prostitute in this area.He ran a beauty salon by himself, and because the deceased was quite attractive and the fees were low, the business continued from morning till night. This prostitute would go to a fried dough stick stand every morning to buy breakfast, and the young man who sold breakfast had always been secretly in love with her, so this morning the prostitute did not open the door early, which aroused the young man's suspicion. The young man came to the store and found that the shutter door of the beauty salon was locked, and no one answered when he knocked on the door, but he saw a pool of blood flowing from the crack of the door. After the police opened the door, they found that the woman was dead and the room was full of blood. I remembered that I saw a man sitting on the ground outside the cordon before entering the door. I turned around and looked through the crack of the door. It was indeed a young man.He sat outside the cordon all day in silence, probably mourning his loved ones.Love is like this, there is no high or low, no matter what the other person does, love is love. "The better the business, the greater the danger." Qi Forensic Doctor said, "It's too cheap and something will happen sooner or later, and it will also cause us to work overtime here day and night." I thought of the case of the mutilated body of a prostitute who was working alone to support her family two years ago (see the case of "Flying Corpse in the Sky" in the first part of the "Forensic Qin Ming" series), and I felt sad.Seeing forensic doctor Qi's contemptuous expression, he suddenly felt a little disgusted with this forensic doctor. "Master said," I said softly, "There is no value in life." "Through the preliminary investigation," Team Leader Ding noticed my unhappiness, and hurriedly said, "The deceased should have broken arteries in many places, with a lot of blood splatter and blood loss. But the scene was too messy, and nothing good was found. clue." "Is there no physical evidence?" I asked. In the preliminary investigation of a case, if the key biological inspection materials are found at the first time, the confidence of the task force can be strengthened, and the method of identifying criminal suspects can be obtained, so physical evidence is decisive for the case. "The swabs from the vagina, mouth and anus have all been tested for semen spots, and there is no reaction." Forensic doctor Qi said, "Maybe they didn't have sex, or they might be wearing a condom." "Are there condoms at the scene?" I asked. "This woman is very careless." Team Ding said, "The scene was messy, and her 'studio' was not cleaned often, so there were toilet paper and condoms all over the floor. Dozens of condoms were extracted and DNA was being carried out overnight. test." "I'm afraid it doesn't make much sense," I said, "even if there is the suspect's semen, it can't prove who is the murderer. After all, she is a prostitute, and the condom in the prostitute's room can only prove who has been whoring. There's no way to prove who did the killing." Team Ding nodded. I went to the cubicle of the beauty salon. This small and airtight space was also covered with blood, and the smell was even more unpleasant.Inside the compartment was a reclining massage chair, which was mostly stained with blood. I pointed to the toilet paper scattered on the ground and said, "Why isn't the toilet paper extracted and inspected?" "The toilet paper is stained with blood. Even if there is a small amount of the murderer's DNA, it will be contaminated by the woman's blood, so we don't think it is of much value." Forensic doctor Qi said, "And you also said just now that the sperm spots found here can Prove what?" "On-site inspections do require purposeful work." I frowned and said, "But it also needs to cast a large-scale net, and any physical evidence that has the possibility of inspection must be extracted, because unexpected things may appear inadvertently." breakthrough." I stooped down and collected a couple of relatively new wads of paper, which were indeed blood-stained, and the blood had dried. I unfolded one of them carefully, and found that the middle part of the paper was not contaminated by blood, but showed a crust-like change. I said, "Look, this piece of toilet paper has become crusty in the middle, which means that semen was once wrapped here, and it looks like this after it dries. This piece of paper can definitely create a man's DNA." Team Ding nodded approvingly. "Don't you use a condom?" Forensic Doctor Qi said, "How can there be semen in the toilet paper?" "Oh, the relatively low-end prostitutes in this area can use condoms or not." An investigator interjected, "As long as prostitutes like it, they may allow them to not wear condoms, and then use toilet paper wipe." We all turned to look at the investigator. The investigator was a very handsome young man. Seeing us all looking at him, the young man blushed and said, "No, no, no, don't get me wrong. I don't do that. I heard them say it when I was handling the case." "That means," I said, "that the DNA on the toilet paper doesn't intersect with the condom's DNA, so they're as likely to have value as condoms." Team Ding nodded and said, "Extract." The massage chair is located in the middle of the cubicle, and there is a large blood-soaked stain in the center.There were blood splatters on the walls around the massage chair, and the highest point was about 1.8 meters above the ground. I stepped out of the cubicle and continued to observe.There are a lot of dripping bloodstains on the ground from the compartment to the rolling gate door, and there are intermittent spattering bloodstains on the wall on the side of the road.One meter away from the rolling gate, there was a large pool of blood on the ground. There was a blank area in the center of the pool of blood, and blood splatters could be seen around it. "Is there any surveillance around here?" I asked, "With such a large amount of bleeding, even if the murderer didn't have much contact with the deceased, his body should be stained with blood. I wonder if we can find anything from the surveillance?" Team Ding shook his head: "This is a surveillance blind spot, and we have also retrieved all the peripheral videos, but we haven't found anything yet." I saw Lin Tao squatting on the ground looking at the traces, so I squatted beside him and said, "Did you find anything here?" "The rolling gate is automatically locked." Lin Tao said, "As long as you pull it, it will automatically lock. The murderer should have left the door after killing someone, and at the same time closed the rolling gate." "Then, are there any fingerprints on the rolling shutter door?" Lin Tao shook his head: "The rolling gate is too big. I don't know where the murderer touched it. There are many fresh traces, but no blood fingerprints were found, so I'm afraid we won't be able to extract valuable fingerprints." "What about the footprints?" I insisted. "Not much more." Lin Tao said, "From the current survey situation, there is a barefoot footprint from the compartment to the rolling gate. It is a blood footprint. After identification, it belongs to the deceased. Apart from this, there is no other blood footprint." Footprints. It's a public place, so those dusty footprints don't mean anything." "Then, what is the direction of the toes that make up the footprint?" "It's from the compartment to the rolling gate." Lin Tao took a sip of the mineral water handed over by a female trace inspector and said. "Hey, don't you have mine?" I said with a smile, "Mineral water doesn't have to be for handsome guys, does it?" The female trace inspector blushed and muttered: "He...he is my senior brother." "Is the dead lying down here?" I pointed to the pool of blood on the ground behind the rolling gate and asked Team Ding. Team Ding said, "Yes." "There are bloody footprints, which is the direction in which the deceased came out of the compartment." I said, "There are splatters of blood on the wall in the middle, and there are splatters of blood around the massage chair in the compartment. It can be concluded that the deceased is on the massage chair. Stabbed?" Team Ding said: "It's not sure. Because there were blood splatters on the way, it cannot be ruled out that the deceased was attacked outside the compartment, and then fell down in the compartment first, and then walked out." I went back to the cubicle, looked around and said, "No, look on the roof." There were a few comet-shaped drops of blood on the roof, which were very clear under the strong light of the survey lamp. "The tail is obvious," I said, "it means that it splashed to the roof at a very fast speed, and at such a high height, it can't be the blood splashed by the artery, but it should be the blood spattered when swinging the knife." .” "Oh," Team Ding suddenly realized, "Is this the use of figuring out the forms of blood splatter and blood splatter?" I nodded and said: "After killing someone, the murderer didn't stay here, just left here and locked the door. So he didn't leave blood footprints on the ground. If he stayed for a while, he might step on the blood that would flow to the ground soon." The blood on the ground left bloody footprints. The murderer moved swiftly and struck viciously." "What is Section Chief Qin's opinion on the nature of the case?" Qi Fayi asked. "Looking at the scene is so simple, we still have to consider the cause of hatred." I said, "But my overall feeling does not seem to be due to hatred. We still have to wait until the autopsy is over before we can make a judgment." "Why do you feel this way?" Team Ding asked. "Because of killing people, people must be killed," I said, "but the murderer didn't care whether the deceased was dead or not, and left after the stabbing. In fact, the deceased is still capable of acting after being stabbed. If she insists on opening the rolling gate Run out, maybe you can be rescued by someone." "That's right," Team Ding said, "If he is rescued, the enemy will be exposed." "However, it cannot be ruled out that the murder was hired," Dabao said, "so the murderer doesn't seem to be afraid that the deceased will recognize him." "However, according to our analysis, the murderer should have committed the murder after the crime was over," said medical examiner Qi, "because the deceased was naked." "Maybe it's a dispute over whoring money." Dabao said, "I've seen a case before where a conflict was caused because of the money who went to whoring, and the client killed the prostitute in the end." "There are quite a few cases like this," I said, "but usually there is a physical fight first, and then it is upgraded to a knife, and there are very few people who go straight to the knife and leave after killing." "It's also possible that the murder was caused by passion." Dabao said, "I have also encountered a case where the prostitute laughed at the client for being too small, and the client killed her in a fit of anger." "No matter what," I lowered my head and thought for a while, and said, "we still have to examine the corpse before we can draw a conclusion." "Is there any cash at the scene?" I turned to ask Lin Tao. "No." Lin Tao said, "This is a rather strange place, and I haven't found any money." "I found it," a trace inspector in charge of the peripheral search opened the door and said, "We found this thing in a garbage bin 500 meters away from the scene." The trace inspector held a small tea pot without a lid in his hand. "According to our investigation," the handsome young investigator said from the side, "the money the deceased usually earned will be saved, and some change will be put in a tea pot. According to some friends of the deceased, this tea pot should be used by the deceased to hold the change. tea pot." There were obvious blood stains on the tea pot, and I asked Lin Tao, "Are there any fingerprints on this?" Lin Tao took the tea pot, looked at it with a magnifying glass, and said, "This is a wipe-like blood stain, but there are no lines, only fine fiber marks." "The murderer wore gloves?" I was surprised. "No," Lin Tao said, "It doesn't look like a glove mark, it should be something like clothes used by the murderer as padding." "That is to say, it is impossible to extract valuable physical evidence from this tea pot?" I said regretfully. Lin Tao nodded. "Use clothes as pads to get things," I said, "this murderer has some anti-detection capabilities." I opened the store door and looked at the sky outside. It was already dark, and I said, "Let's go for an autopsy, otherwise I don't know what time I will be able to go to bed tonight. I'm too tired during the day today, I can't bear it." Although the funeral home in Yingcheng is very grand, the forensic anatomy room has not been built yet, and forensic doctors always examine the corpses in the hall of the funeral home. The old doorman opened the door of the corpse vault for us reluctantly.Both sides of the hall are covered with mortuary freezers, and the compressors hum.In the center of the hall was a corpse bed. On the corpse bed was a corpse wrapped in a white body bag. Not surprisingly, it was the deceased in this case. "Here," I said with a smile, "do you usually dissect corpses in full view?" "Don't talk nonsense," Dabao knew that I was referring to the corpses in the freezer around him, wiped his cold sweat, and said, "It's the middle of the night, it's scary." I put on my dissecting suit and coughed.Suddenly, there was a faint echo in the empty corpse vault. The sound of coughing and the roar of the freezer compressor were intertwined, as if floating on the roof. Dabao looked around the morgue and said, "Well, it's pretty creepy to perform an autopsy in this place." "What's the matter?" Forensic Doctor Qi said, "We don't have enough manpower. I often examine corpses of abnormal deaths here alone, even at night." I saw Forensic Doctor Qi bragging about his courage, and I couldn't help but think of the time when he was trapped by the mortuary administrator in the morgue to test his courage during his university graduation internship. I opened the body bag, and inside the bag was a naked female corpse, the front of the body was soaked in blood. I raised my elbow and rubbed my nose, and said, "Has the time of death been confirmed?" "No problem." Forensic doctor Qi said, "It was exactly nine o'clock when we arrived at the scene in the morning, and it was judged that the deceased had been dead for about eight hours, so he should have died around one o'clock last night." "Well, it's about the same time." I said, "Only in the middle of the night would the murderer dare to kill so recklessly, and dare to walk on the street without washing his clothes after the murder." Because the long hair of the deceased was soaked in blood and stuck to his face indiscriminately, it was impossible to take a frontal photo, so I ordered Dabao to shave the hair of the deceased while cleaning the blood from the deceased. There was no dissection bed, so we had to use plastic buckets to carry tap water and wipe it with towels bit by bit. The deceased was Chen Jiao, twenty-seven years old, and had been engaged in prostitution for seven or eight years. His body had some old scars from cigarette butt burns and knife cuts.There is a colorful peony tattooed on her left neck, and the stamen of this peony is bleeding out as we turn the corpse. "Some accident." I said, "the deceased did not have a second injury, only this one. This is really a fatal blow." The colorful peonies affected our observation of the wound shape. I only partially dissected the neck of the deceased and observed it from the inside of the skin. I cut open the white skin of the deceased from the middle of the neck, peeled off the skin and muscles layer by layer, and found that the neck muscles of the deceased had been soaked in blood, and a large number of blood clots adhered around the tear.I slowly peel away the clot, exposing the wound. "The corners of the wound are blunt and sharp." I said, "the length is about four centimeters. There is a corner in the middle of the wound, which should be a stab wound. The corner to the corner is about two centimeters, which should be the width of the blade. This is a hand-held fruit knife." I picked up the knife, severed the sternocleidomastoid muscle of the deceased, and probed every blood vessel in the left neck.Soon, I found the severed ends of the blood vessels. I clamped the severed ends on both sides with hemostats and took pictures. "The deceased suffered a rupture of the internal carotid artery." I said, "This knife directly punctured such a large blood vessel. The blood loss process was very fast, and the death was very fast. Moreover, the wound on the neck of the deceased was quite special. There was a stabbing wound at the place, which suggested that after the murderer stabbed, there was an action of picking the tip of the knife during the process of drawing the knife. The blade was pulled down, resulting in a corner in the center of the wound." I wiped every piece of skin of the corpse carefully with a towel, and said, "There were no threatening or resisting injuries on the corpse." "It shows that the deceased was attacked suddenly without precaution." Dabao said. "And the murderer didn't intimidate the deceased," I said. "It is very likely that the murderer found the tea pot containing the change when he entered the door. After the murder, he killed the person directly, took the tea pot and left." "Damn," Dabao said, "take all the change?" "No, it should be said that he killed people for tens of dollars or hundreds of dollars." I said, "The murderer should have a very low standard of living." I picked up the dead man's hands, probably because the dead man covered the neck wound with his hands before he was alive, resulting in intermittent blood splatters on the wall between the compartment and the rolling shutter door.At the same time, the hands of the deceased were also covered with blood.I picked up her right hand and found a small piece of paper the size of a soybean stuck to the tiger's mouth. "There's a scrap of paper here," I said, "it looks like toilet paper, but it's contaminated with blood, so it's no longer DNA-worthy." Probably because the dissection environment was too scary, we quickly completed the autopsy and left the funeral home. "The time of death was at one o'clock last night. The murderer may have stabbed Chen Jiao in the neck with a fruit knife after he had sex with Chen Jiao, or when he was about to have sex, causing the internal carotid artery to rupture. During the attack, there was no precaution or preparation. After the murder, the murderer immediately took the tea pot used to hold the change in the store and left the scene, and locked the rolling gate before leaving." At the special case meeting, I said slowly, "According to the Judging from the act of taking all the change, including the coins, from the tea pot, the murderer’s purpose of killing should be to steal money. If the murderer killed for such a small amount of money, then his standard of living should be very low and very poor.” "It's money theft again." Wang Cheng, deputy director of the Yingcheng Public Security Bureau rubbed the bridge of his nose with both hands, and said, "I really don't know where to start with such a case. The murder of a prostitute two months ago has not yet been solved." Woolen cloth." "Oh?" I said, "There was another incident two months ago? So, can these two cases be connected?" Team Ding shook his head and said, "There is no conclusive evidence." "I'll look at the file of that case tomorrow." I said, "But this case is really difficult. So far, we don't have any good clues and evidence." "Let's start with the people living in poverty near the scene." Director Wang said, "In addition, offer a reward for clues. After all, there are people on the streets of Yingcheng at night. See if anyone has seen people with blood walking outside. .” "Let's do the preliminary work first," Detachment Ding said to me, "Go back and rest first. Mr. Chen said that you should rest more. You just got off a petition case today." I smiled and nodded, thanking Master for his concern. In the middle of the night, Dabao was already snoring loudly, but I didn't feel sleepy at all.I don't know when it started, I couldn't fall asleep when I was tired, which is a sign of neurasthenia.I turned on the computer and flicked through the photos of the "Yuntai case".The rape and murder case that happened in Longdu not long ago has been combined with the "Yuntai case" according to the knot clues I provided. Now the "Yuntai case" task force has joined the original task force who has been withdrawn. Will go back to battle again, and start to search for the suspects in the Longdu case, and start to investigate through DNA data. I believe this case is not far from being solved. Suddenly, Dabao got up from the bed, walked slowly to the door of the room, opened the door and walked out, then closed the door behind his back. I was at a loss, what was he doing out in the middle of the night in the cold weather?And just wearing a pair of underpants, so you're not afraid of freezing? I quickly opened the door and ran out. Dabao was wandering in the corridor with his head down. I grabbed him and asked, "Where are you going?" Dabao looked at me and said, "Go to the autopsy room, didn't you say you're going to tie up another case?" This sentence made me even more confused: "You didn't make a mistake, did you? It's almost two o'clock now, where are you going for an autopsy?" After I finished speaking, I suddenly understood that Dabao must be sleepwalking! No matter what happened, I pulled Dabao into the room.Dabao looked at me with a puzzled expression, didn't speak, got into bed and started snoring again. The next morning, I asked, "Did you know you went out to find the autopsy room last night?" Dabao shook his head: "Nonsense, is it your hallucination?" "Have you never sleepwalked before?" "there has never been." "Forensic sleepwalking is really a very scary thing." I said with a smile, "If I share the same room with you in the future, I have to put the dissection box in Lin Tao's place for safekeeping, otherwise, I will have to cut my belly open for you sooner or later." "I sleepwalked to find the dissection room?" Dabao still didn't believe it. I nodded. Dabao pushed the glasses on the bridge of his nose, thought for a while, and said, "But when you say that, I seem to recall that I dreamed of dissecting a dead body last night, and then found clues to connect this case." "Maybe you are a prophet." I said with a smile, "Our task today is to examine the dead bodies of the prostitutes who were killed in the south of the city two months ago." "Do you think they can be combined?" Dabao asked. "I don't know." I said, "But since I'm here, let's take a look at the case by the way, maybe I can find something? It's the same thing." "Oh, yes," said Dabao, "there were such good omens before I came here, but nothing was found about this case." On the car to the funeral home, I flipped through the case files. It was a murder case that happened two months ago. The victim was also a prostitute named Zheng Qiaohui. This case happened in a beauty salon twelve kilometers away from the scene of Chen Jiao's murder. When the deceased was found, he had been dead for about a week.Although the weather had turned cold at that time, the temperature in the airtight room was still relatively high. In addition, the upper body of the corpse was soaked in a pool of blood, so it was already highly decomposed. The photos at the scene showed the corpse covered in white fly maggots, the head, face and chest were black, it looked disgusting. The deceased also died from a knife wound, a single-edged sharp weapon, but due to corruption, the exact width of the blade could not be measured.Preliminary investigations showed that the murderer took the coat of the deceased, but it has not been found yet. "Perhaps the purpose of taking the coat and the tea pot is the same," I said, "for a little money." "However, the distance between these two scenes is too far, one is east of the city and the other is west of the city. Generally, clients choose prostitutes in different regions, so it is really difficult to connect the two scenes that are so far away." Dabao slowly flipped through the file. , said, "In addition, Chen Jiao is petite, and this prostitute probably weighs two hundred catties. This, the difference in taste is too big." "What you said are all subjective conjectures." I didn't give up hope. "What we need to find now is an objective basis for concatenation." The relationship between the forensic doctor of the Public Security Bureau and the staff of the funeral home is very important, and forensic doctors from all over the country will also try their best to coordinate the relationship with the funeral home.If the relationship between the two is very harmonious, the forensic doctor will omit a lot of work, such as moving the body. However, the relationship between the forensic doctor of Yingcheng and the staff of the funeral home was obviously not harmonious. When we arrived at the funeral home, the body had not been taken out of the freezer.Forensic doctor Qi has been explaining that in fact, he has asked the funeral home to pull out the body and thaw it out, but the funeral home staff forgot to arrange this when they were shifting. Helpless, we had to do it ourselves, and took out the body of the prostitute from the top cabinet located in a row of refrigerators. This dead body weighing more than 200 kilograms really cost us a lot of effort.Under the heavy pressure, the corpse truck was on the verge of falling. If the corpse is not thawed, a comprehensive and systematic inspection cannot be carried out, but there is also an advantage, that is, it will not smell so bad. The smell of highly decomposed corpses will be greatly reduced after freezing, but will intensify if they are frozen and then thawed. However, what makes people sick is not only the sense of smell, but also the sense of sight. The corpse in front of him had been frozen into a popsicle.With a pitch-black head and face, it is almost impossible to distinguish the face.Between the sutures in the chest and abdomen of the corpse, yellow fat was turned out, and maggots that had been frozen to death were still stained on the skin. I rubbed my nose and frowned: "The corpses are like this, why haven't they been cremated? Haven't they all been inspected? Photos and videos are enough. This corpse can stink the entire refrigerator Go, in the end, maybe the government will come forward and ask the funeral home to waive the body preservation fee. No wonder the funeral home has an opinion, and if I do, I have an opinion too." "Her husband is an idler in the society. He usually drinks and gambles and relies on this woman for support." The lead investigator of this case said, "After the woman died, her husband lost his source of income, so he wanted to use the case as an excuse to use the corpse It is used as a tool to blackmail the government to give it a one-time compensation.” I gritted my teeth. In this world, is there anything I can't do for money? "Has the suspect of the deceased's husband been ruled out?" I asked. The investigator nodded: "He stayed in an underground casino for two consecutive weeks and didn't go out. This can be confirmed by the surveillance video." "What do you think is the nature of this case?" I put on my dissecting suit, used a knife to incise the skin next to the wound, and separated the subcutaneous tissue of the wound, hoping to see the shape of the wound clearly. Because the corpse was highly decomposed, once I stabbed it, a black-green liquid would flow down the handle to my glove, and the glove suddenly became very slippery, which made people feel sick. In the case of frozen cadavers, it is not easy to separate the wound skin and subcutaneous tissue.I gently stirred with the tip of the knife until the subcutaneous tissue of each wound was fully exposed, and then repeatedly wiped the wound on the muscle section with alcohol. Soon, the shape of the wound was fully revealed. My eyes lit up. "Look," I said, "the deceased had four cuts on his chest and neck, and the fatal cut was a cut to the heart. But the four wounds have one thing in common." "They're all stabbed," Dabao said. Forensic Doctor Qi stared at the wound, but did not speak. I said, "Yes, the four wounds on the deceased's body are in the shape of stabs, and the edge of the wound is pulled down, which means that when the murderer drew the knife, there was a movement of the tip of the knife." I paused, and then said: "The wound on Chen Jiao's neck is the same. One wound can't explain anything, but five wounds can't all be so coincidental. This can only explain one thing." "It means that this is the murderer's habit of using a knife," Dabao interjected, "the murderer habitually draws his sword and picks it up." I nodded and said, "This can be used as the basis for joining the two cases." After I reported the basis of the serial case, the meeting room of the task force fell silent. "Using the habit of using a knife to link cases together is far-fetched." Team Ding broke the silence. "Usually there are two situations in which stab wounds occur." I said, "One is that the position of the victim changes, causing the murderer to pull out the knife at a different angle than when he entered the knife, forming a stab wound. The second is that the position of the knife edge is on the victim If the body positions are different, some wounds will be stabbed, and some wounds will not be stabbed. However, in both cases, the deceased was stabbed on the massage chair, and the incident happened suddenly, and neither of them resisted, so the theory of the victim’s position change cannot be said.解释。两个被害人身上，尤其是两个月前郑巧慧被害案中，郑巧慧身上有四处创口，位于不同位置，但是都出现了刺切，这个不能用不同角度来解释。唯一能解释的，就是习惯。” “嗯，大家想一想，”大宝说，“拔刀时刀尖上挑，这个动作并不常见，完全可以作为一个特异性指征。” 专案组还在沉寂，显然对我的这个依据并不十分认可。 “我支持秦法医的意见。”刚刚接完一通电话的英城市公安局DNA室主任周彪放下手中的手机，说，“刚得到消息，我们对陈蛟被害现场提取的三十二个避孕套、十七张卫生纸进行了DNA检验，均检出男性DNA基因型。其中陈蛟被害现场中的一张卫生纸中检出和郑巧慧被害现场中提取的一枚避孕套中一致的DNA基因型。” 周主任说得有些绕，我反应了一下，说：“也就是说，这个男人既去过陈蛟店里，也到过郑巧慧店里？” 周主任点了点头。 “如果是这样，我敢大胆地断定，这个DNA就是凶手的DNA。”我有些激动，说，“之前大宝说过，这种低档美容院的顾客群都是有区域性的，如果两个相隔十二公里的美容院的顾客有交叉，且都发生了命案，那么这个顾客很有可能就是凶手！” 大宝点头认同。 “可是这一切都必须建立在凶手和死者之间发生了性行为的基础上，”丁支队说，“死者体内并没有发现精液，而这个嫌疑DNA的主人显然没有戴套，而是用的卫生纸。那么他是如何做到不在死者体内留下DNA的呢？” “体外排精，或者用手啊。”又是之前那个帅帅的侦查员。 大家又一齐看向他。 他又红着脸说：“不不不，别误会，办案的时候得知的。” 我说：“我支持这个观点。陈蛟应该是用手的，依据是这张图片。” 我用幻灯片播放了陈蛟右手虎口部位的纸屑，说：“人体精液是有一定黏合力的，如果死者手部沾有精液，再用易破的卫生纸擦拭，很有可能会将纸屑粘在手上。” 两个现场有交叉DNA，陈蛟手上有卫生纸纸屑，两名死者的损伤有共同特点，这么多依据，共同支撑了我主张的串并案件意见。 丁支队点点头，说：“既然这样说，我现在也同意将两起案件并案侦查。那么，就先从这个DNA查起。你们有可疑的嫌疑人吗？如果有，马上提取他们的DNA样本。” 侦查员们纷纷摇头，显然，通过前期侦查，派出去的六组侦查员都没有摸排出可疑的嫌疑人。 丁支队低头叹了口气，说：“那就赶紧去查！” “不如，”我说，“让我们先去看看郑巧慧被害案的现场？” 没有侦破的案件现场，办案单位会去反复勘查，希望能发现更多的线索，或者印证更多的证据。郑巧慧被害案的现场也是这样，依旧被封存着。 这也是一间独立小门面房，门口的卷闸门下缘已经生锈，卷闸门外拉着一条蓝白相间的警戒带。 派出所民警接到通知，已经早早等在那里，见我们赶到，赶紧用钥匙打开了挂在已经被撬坏的卷闸门锁外的挂锁。 我看了看卷闸门的锁，对林涛说：“你看，这起案件中，凶手也锁闭了卷闸门，这作案手段如出一辙啊。” “现在就寄希望于能在这个现场发现一些之前他们没有发现的线索了。”林涛说。 基本上这种低档美容院的房屋结构都很相似，大厅后面有一个隔间。从物品的摆放看，虽然郑巧慧不像陈蛟那样注意身材保养，但屋内收拾得干净整洁得多。 尽管如此，屋里的气味依然让人不想久留。密闭的空间里完好地储存着尸体被发现时的高度腐败的气息，混合着霉变的味道，让人仿佛瞬间回到了两个月前的惨案现场。 现场的地面铺着白色地板砖，有几块地板砖上贴着黑色比例尺，比例尺旁边无一例外是沾染了泥巴的鞋印。 “这个现场发现的鞋印比较一致。”民警见我和林涛蹲在地上看鞋印，介绍道，“不过经过鉴定，这些鞋印没有比对价值。” “当天下雨吗？”我对痕迹检验领域不太精通，转而问道。 “是的，下的雨还不小呢。”民警说。 “如果下雨就价值不大了。”林涛用镊子夹起一块泥土，左看右看，说，“要是没有下雨，这些鞋子上沾着的泥巴倒是能说明一些问题。如果下雨，任何人鞋子上都有可能沾有泥巴，而且这泥巴看起来也没有什么特殊之处。” “时间不早了，我们要赶在晚饭前完成对这起案件现场的复勘工作。”我说，“这样，我们分工，我和大宝看中心现场隔间，林涛你和你的助手看外间。” 专案组两个月前对中心现场的勘查非常细致，每一处物证都有标记和记录，所以我和大宝找来找去都没有发现能够有突破的线索。直到林涛的一声“来看看这是什么！”才让我们重新燃起了希望。 林涛的掌心放着一片黄豆大的红色物体，是一个布片。 “从哪里找到的？”我说。 林涛指了指墙上的一枚水泥钉，说：“挂在水泥钉上，看起来还是比较新鲜的，说不定和案件有一定的关系。” “不是说不定，而是一定！”我激动地说，“因为钉子下方的墙上有一处擦蹭状血迹。” 我拿出随身携带的照相机，拍下这一处孤立的、却没有被原勘查人员重视的血迹。 “现场有翻动的痕迹，凶手在离开之前翻动了现场，所以这一处擦蹭状血迹并没有引起勘查人员的注意。”林涛说，“虽然现场很多翻动部位有擦蹭血迹，但是没有一处有指纹纹线，都没有比对价值。” “但是可以证明凶手杀人是为了钱，”我说，“而且这一处擦蹭血更有价值。首先，这个地方不可能藏钱；第二，这里离大门还比较远。凶手为什么要在这里擦一下？” “为了拿挂在钉子上的衣服。”林涛说。 我笑着点点头：“所以，你发现的这块撕裂的小布片，非常有价值。” 我接过布片，用手摩擦着。因为我戴的是橡胶手套，触感比纱布手套更敏锐，很快，我就得出了结论：“这是雨衣。” “对，当天下雨，”大宝说，“凶手来的时候穿了件红色的雨衣！” 在我们的要求下，专案组提前召开专案会议。这种不按规定召开的专案会议，通常只有一种情况，那就是调整侦查部署。 当我宣布完我们的发现，确定凶手在杀郑巧慧的那天夜晚穿的是红色雨衣时，会议室里发出了一阵嘘声。 “我们都正在努力做调查，”一个侦查员说，“把我们叫回来说的就是这个？有用吗？下雨天，有多少人穿红色雨衣知道吗？我们英城城区就有将近两百万人口，难道要一件一件地找红雨衣？这不是拿我们侦查部门开涮吗？” 面对侦查员的奚落，我沉吟了一下，说：“大家请看这张图片。现场发现了多枚这种形态的鞋印。虽然发现的时候死者已经死亡一周，但这些鞋印留下的足迹是已经干涸了的、淡黄色的泥土。” 我见侦查员们依旧不服气地昂着头，点燃了一根烟，接着说道：“这样的足迹形态，说明凶手在进入现场的时候鞋子上沾满了稀泥，所谓稀泥，是指泥巴和水的混合物。” “下雨天，这很正常。”侦查员说。 “那么，问题就来了。”我说，“下雨天，一般都是什么人群穿雨衣？” “骑自行车、骑电动车、骑摩托车，”侦查员说，“这样的人多了去了。” “如果是骑车到现场，”我说，“鞋子上会有这么多稀泥吗？” “你是说，”丁支队眼前一亮，“你是说凶手是走去现场的？” “是的。”林涛说，“初次勘查的时候，在现场东边五百米的地方，有一处修路的泥坑里发现了和现场形态相似的足迹。虽然没有认定条件，但是从形态上看还是非常相似的。当时你们只考虑了凶手是从东边走到现场的，但是没有发现雨衣的线索。” “两者结合起来看，”我点点头，说，“凶手是穿着雨衣走去现场的。这样的人不多吧？” “不多。”侦查员恍然大悟。 “如果从现场周围的监控寻找徒步穿着雨衣的人，我相信不会找到很多。”我转头问祁法医，“郑巧慧的死亡时间定下来没有？” 祁法医说：“当时我们根据尸体身上的蛆的生长程度，判断郑巧慧死于九月二十一日。” “通过调查，”侦查员说，“也印证了法医的推断，二十二日早晨就有人注意到郑巧慧没有开门，但是因为不熟悉，所以也没有人去关心。” “我说的是具体的死亡时间。”我说。 “具体死亡时间，只有通过胃内容去推断。”祁法医说，“死者胃内容基本排空，只剩极少量食糜，所以我们推断死者死亡距其末次进餐有四至五小时。” “这个死亡具体时间问题，”丁支队插话道，“我们当时没有重视。法医和侦查也没有碰，其实侦查已经调查清楚郑巧慧最后一顿饭是在隔壁小饭店里吃的，当时是大约晚上七点钟的时候。” “时间很吻合。”我说，“和陈蛟被杀案一样，凶手选择的时间都是深夜。郑巧慧既然是二十一日晚上十一点到十二点左右死亡的，那么调取当天从晚上十点到凌晨一点这个时间段附近路口的所有监控录像，寻找徒步穿着红色雨衣的人，这个不难吧。” “不难，”侦查员跃跃欲试，“给我两个小时的时间，我们能找到嫌疑人的视频资料。” 比想象中顺利许多，四十分钟后，侦查员拿着一块硬盘走进了专案组。他扬了扬手中的硬盘，眉飞色舞地说：“找到了！” 视频中，一个穿着红色雨衣的人匆匆从摄像头前经过。后面一段录像，这个人又匆匆从摄像头前反方向经过。后面一段录像中，红色雨衣的侧面垂下来一个东西，随着这个人的步伐而摆动。 “看，”我兴奋地说，“这个东西，不出意外的话，就是死者的外套！” “你们注意到没有，”林涛把视频暂停，走到幕布前指着穿红色雨衣人的说，“这个人的后背，好像有个凸出来的地方。” “难道是背着一个包吗？”丁支队说。 我走近看了看说：“不是包，应该是个驼背。如果是包的话，背包的位置不应该这么靠上，而且这个人走路的时候，有明显头部前倾的迹象。说明，这个人是个驼子！” “你要是不说是个驼子，我还不太敢认。”辖区派出所民警说，“我们辖区有个环卫工人就是个驼子，走路有些跛。刚开始看这段录像，我就觉得他跛的姿势很像那个环卫工人，可是监控模糊，不太敢认。” 我抬头笑了，问：“丁支队，你看是先抓人呢，还是先搜查？” “反正我们手里有嫌疑人的DNA样本，不怕他不交代。”丁支队说，“依我看，人抓来，同时对其住处进行搜查。” “那就交给你们了，”我笑着说，“我们得回去睡觉了，大宝最近累得都开始梦游了。” “什么梦游？”大宝瞪着眼睛说，“明明是你幻视！” 第二天一早，我们走进专案组办公室就觉得气氛不对。 专案组里烟雾缭绕，侦查员们都红肿着眼睛，疲倦地翻看着卷宗。 “怎么，”我问，“出现问题了？” 丁支队显然一夜没睡，伸了伸懒腰，说：“这家伙嘴硬，拿不下来。” “搜查也没有结果吗？”林涛急着问道。 丁支队说：“没有。红色雨衣、血衣、郑巧慧的外套，都没有找到，连郑巧慧被害现场的鞋印，都没有在孙建国家里找到类似的鞋子。” 孙建国就是那个驼背的环卫工人。 “那DNA比对上了吗？”大宝问。 “唯一的好消息，就是两起命案中交叉DNA确实属于孙建国。”丁支队说。 “那不就得了，”我高兴地说，“之前我们有详尽的判断，这个DNA应该就是凶手的。既然这个DNA是孙建国的，那么我们就没有抓错人，他应该就是凶手啊！” 丁支队无奈地耸耸肩，说：“可有什么用呢？他死活不交代。” “交代不交代有什么关系？”我说，“我们有物证啊。” “这个物证没有证明效力啊。”丁支队说，“孙建国很狡猾，他承认自己去过这两家美容院嫖娼，但是坚决不承认他杀了人。我们的物证也就只能证明他去嫖过娼，而不能证明他杀过人。” “监控录像也说明不了问题吗？”我问过后就知道自己的问题有多么苍白无力。 丁支队盯着我，没有说话。 “我去看看孙建国。”我说。 孙建国是个四十岁的长相丑陋的男人，见我走进审讯室，贼眉鼠眼地瞟了我一眼。 我见审讯桌上放着一排用塑料物证袋装着的东西，应该是从孙建国身上搜出来的。我在审讯桌前走来走去，突然，一袋十几张十元、二十元、五十元的纸币引起了我的注意。 我的脑海里突然浮现出之前办理狗咬死人那起信访案件的情形。案件的原始资料我都看过，民警之所以发现死者是被狗咬死的，就是因为老太太的一张纸币上，被血液黏附着几根狗毛。 我迅速地戴上手套，打开物证袋，一张纸币一张纸币地翻看起来。 功夫不负有心人，我发现两张二十元和一张五十元的纸币上都有可疑斑迹。我的心跳突然加快，赶紧打开随身携带的勘查箱，取出联苯胺试剂瓶。 经测定，纸币上的斑迹，是人血！ “这是陈蛟的钱，对吗？”我瞪着孙建国说。 孙建国看着我完成了这一系列的动作，有些心慌，显然他不知道我这些动作意味着什么。他动了几下嘴唇，没有出声。 “还不说？”我厉声道，“陈蛟的钱为什么会在你兜里？” “因为她找了我的钱。” “她收了你多少钱？”我问。 "Fifty." “五十？那么你是给了她多少钱，她会找你九十块？” 这句话显然出乎孙建国的预料，他翻了翻眼睛，说：“不知道。” “那钱上又为什么会有陈蛟的血？”我拍了下桌子，说，“还不交代？” 这一连串发问，显然让孙建国认定我们掌握了全部证据，他的心理防线迅速崩塌了。 钱上的血迹的DNA做出来之前，孙建国就交代了他的全部罪行。 除了这两起案件，孙建国在两年前还做过一起案件，杀了一名卖淫女。 根据孙建国的交代，侦查员找到了孙建国焚烧、掩埋物证的地方，找到了郑巧慧的外套和他的血衣、雨衣的残烬。至此，这起系列卖淫女被杀案胜利告破。 庆功宴上，我多喝了几杯，搭在林涛的肩膀上说：“看见没，法医比你们痕迹多了个资源，那就是信访案件。我们在信访案件中，也可以有所收获。若不是前天的信访案件，我还真不知道怎么去突破这起案件呢。”