Chapter 2 Blood shadow behind the first case
As usual, the lights in Mr. Miao's bedroom were on, illuminating the snow-white window screens brightly.However, on the snow-white window screen, there is a vaguely slanting mottled shadow, motionless and never changing its shape.
"This case doesn't look simple." I squatted beside the corpse, squinting my eyes and looking at the ground.
"I think so too. Shi Yu, please help me take photos of these shoe prints." Lin Tao said, "Most of the strange shoe prints are camouflaged, and the anti-detection ability is evident."
"Are you sure that pool has been captured?" Dabao raised his arm and wiped the sweat from his forehead, and said, "Well, there won't be another tank, pot, etc., pretending to be a forensic doctor to take revenge on you. Is Chi Zi revenge?"
After the "June 3rd Project" was solved, the whole province seemed to be much quieter, and the number of cases dropped significantly. There were only a handful of difficult murder scenes that required our investigation team to visit.However, even if there were fewer murders, we did not feel at all relaxed.In addition to various daily appraisal tasks, Master also arranged two subjects for us.
The master may be in a good mood recently, so his ideas are springing up, and he successfully declared two provincial key research projects as soon as he made a move.Putting the word "focus" puts us under a lot of pressure. For project design, data collection and so on, everyone wants to break their heads and run their legs.It is gratifying that in the quiet days of the past six months, the prototype of the research results of the project has emerged, and the sense of accomplishment is no less than that of solving a murder case.
Dabao was even more excited, and when he met people, he said: "It is said that our actual combat department puts more emphasis on experience than research, but now we are different, we are also people with projects!"
Even, during a business trip to collect project data, Dabao's problem of sleepwalking in the middle of the night happened again.
In the middle of the night that day, when I was reading vigorously, Dabao suddenly jumped out of his snoring, opened the door of the hotel room and walked out.This time, unlike the previous one, I had experience and knew that this guy was sleepwalking again.So, I closed the book and chased him out, and dragged Dabao into the room without saying a word in the corridor.While moving, Dabao muttered, "Don't pull it, don't pull it, I'm going to do experiments in the laboratory."
The rhythm of his words made me almost sing along: "Do experiments in the laboratory to see if there is no constant promise..."
Early the next morning, I told Dabao about his sleepwalking, but he still categorically denied it.
I said: "If you don't admit it, don't admit it. It's better than last time. Last time you sleepwalked to find the dissection room. If you treated me as a corpse, wouldn't I have to be knifed?"
"That's not necessarily true. If you are treated as a guinea pig this time, it will be even worse for you." Dabao said, "However, I have never seen such a fat guinea pig."
An hour ago, Master called a meeting of members of our survey team.
Walking into Master's office, I immediately felt a bright light in my eyes.
Beside Master's desk, there was a girl with short hair standing at some point.The girl was in her early twenties at most, with a single-lens reflex camera hanging around her neck, and she was concentrating on flipping through a document on the table.A small strand of hair slipped behind her ear, blocking her view.She frowned slightly, and brushed her hair up, pinning it behind her ears.For a moment, the words "bright eyes and bright teeth" must flash in everyone's mind.Lin Tao beside him couldn't help taking a breath.Even Dabao and I, two people who are "famous and beautiful", couldn't help but stare blankly at the sight.
"Ahem, let me introduce you." The master was a little embarrassed, stood up and said to the girl, "This is Section Chief Qin of the Forensic Medicine Department of our corps, and he is also the team leader of the investigation team."
The girl turned sideways slightly, nodded politely, with a calm expression on her face.
I was at a loss.
"This is Chief Lin of the Trace Inspection Section."
Lin Tao was still in a daze, and when he heard his name, he paused for a few seconds before saying "ah" in response.
"This is Li Dabao from the Forensic Medicine Department." After the master introduced the girl beside him, he turned to look at us again, "This is Chen Shiyu, your new colleague."
"what?!"
Dabao and I called out at the same time.
"New colleague? Our department?" I was the first to wake up, "Master, it's better to ask for a man when we show up?"
To be honest, I do have a bit of sexism in my field of work.I know that many girls like the profession of forensic medicine, and our province has recruited many female forensic medicine doctors, but in fact, there are not many who persist until the end.Of course, there are many reasons, maybe it is the cruel and bloody scene, maybe it is the stinky rotting corpse, maybe it is the huge psychological pressure... In short, there are indeed very few women who can persevere in the work of forensic on-site investigation.No matter how attractive a beauty is, it can't change my opinion.
As soon as I questioned, the girl turned her head.She frowned slightly, staring at me silently.
"What... what!" Lin Tao immediately smoothed things over, but still stuttered, "Look at the camera she's carrying, a Nikon D3X, it's not a camera for beginners. She's a professional in trace inspection, right? Master Are you giving me an assistant?"
The three of us discussed it in private, since our profession is a masculine profession and requires frequent business trips.If the superior meets our request to hire a newcomer this time, he must insist on a male colleague, and absolutely not a girl.Because if a girl with bad hands and feet comes, she has to stay with us in a hotel, or even sleep in the open, which will bring a lot of inconvenience to our work.But right now, Lin Tao is obviously going to turn against him, so I poked him hard with my elbow.
"She is not a forensic medicine major, nor is she a trace inspection major." The master said, "She is a senior student in the investigation department of the Public Security University. This year, our department will recruit a large number of talents. She has signed an agreement with the provincial department. , engaged in investigative work. Now is the internship period, so she will use the internship time to come here first."
"That's good." I breathed a sigh of relief, met Chen Shiyu's provocative eyes, and asked, "How long is your internship?"
"Of course, the leadership team of the corps has already studied it." Master continued, "Comrade Xiao Chen can continue to serve in your investigation team after his internship expires."
"No." I resolutely refused, "We need a male colleague. Our work requires hard work, not fun, and we have already worked hard, so we don't want to spend energy taking care of a lady."
Chen Shiyu finally turned around and faced us with the front of his body.She took a step forward, and I took a step back in fright.I know that people in the investigation department of Public Security University, even women, are not joking when they start their hands.
"Do we know each other? You are from the technical department. You have a basis for what you say, and there is no doubt about it." Chen Shiyu looked at me firmly and said word by word.
I couldn't continue, and said, "This is a summary of my experience. Master, please reconsider."
"Ahem, I think so." Lin Tao said, "Master's consideration is still very thorough. Our investigation team often has to go to the grassroots to handle cases, but the contact with the grassroots investigation department is not enough, and the communication is not so smooth. If there is Joining us with a colleague who knows how to investigate can effectively solve this problem. And I think this Comrade Xiao Chen is a photography enthusiast, right? He can just help me complete the work of criminal photography. I can do better with my hands free. Checking the scene."
Chen Shiyu's expression eased, and he nodded friendly to Lin Tao.
"This is an organizational decision. You can have an opinion, but you must keep it." The master changed the subject, and his tone changed from a discussion to an order. "Go to the Equipment and Finance Department to apply for a desk. She will share an office with you in the future."
Master got up and went out, leaving a few of us there.I stood still angrily.
Seeing that the situation was hopeless, Dabao turned his back on him quickly, dragged me and said, "Well, Lao Qin, don't be stubborn, this Chen Yu is from the Investigation Department of the OUHK, so you should be more than one bodyguard."
Chen Shiyu said: "Comrade, first, I am not a bodyguard, I am a thoughtful and knowledgeable investigator; second, my name is Chen Shiyu, Chen Shiyu, remember? Not Chen Yu."
The atmosphere in the office has never been so awkward.Dabao failed to smooth things over, but Chen Shiyu just stared at me rebelliously.I also stared at her unabashedly. Lin Tao was about to say something when the command phone that hadn't rang for a long time suddenly rang.
Dabao jumped up and grabbed the phone: "Hello? How many?"
On the other side of the phone, I was asked inexplicably: "Where is it? Is it the investigation team?"
"Yes, yes, how many?"
"A few words? What a few words? Let me see, there are not a few words." It seems that a novice came to the command center, and he said stylized, "Ah, so, hello, the Longpan City Public Security Bureau just sent a request for instructions." Letter. At seven o’clock this morning, when a woman rode an electric vehicle through the Huangkou section of the East Elevated Highway, she found a homeless man lying there sleeping under the bridge. From a distance, she suspected that the homeless man had blood on his side, but when she approached, she found the homeless man Han was already dead, and there was a lot of blood around him, so he called the police. After the preliminary investigation of the scene by the forensic doctor of the city bureau, he felt that the case was difficult and asked the provincial department for support."
Judging from Dabao's distorted facial features and veined hand holding the microphone, he hated this talkative novice extremely.
"Don't crush the phone, it's not easy to get reimbursed for buying a phone now." I was amused by Dabao's expression.
"There is a murder case, let's go." Dabao hung up the phone viciously.
"Why are you so excited about a murder case?" I said, "This is a life lost."
"I'm not excited." Dabao began to beam with joy again, "I'm thinking about my body!"
"Body?" I didn't know what Dabao was referring to.
Dabao immediately put on his signature pose, raised two fingers, and said, "I don't have hemorrhoids at the survey site!"
"Ahem." Lin Tao said seriously, "There are girls here now, so be careful when you speak."
After packing up the on-site investigation box, we called the driver Han Liang and drove towards Huangkou.
"When you come to the scene in the future, you must be serious." I said to Dabao in the swaying carriage, "If someone takes a photo of you smiling at the scene and posts it on the Internet, it will be enough for you to drink a pot."
"Looking at the dead body all day long, you can't be crying every day, right? How unlucky." Chen Shiyu in the passenger seat stared out of the window blankly, and said quietly, "Send as soon as you send it. Any reasonable person can understand and stand Our side."
Most forensic doctors will go through such a mental journey: from fear of corpses to compassion for life, from thinking about life to final indifference.This kind of indifference is not indifference to emotion, but indifference to life and death.Only by seeing through life and death can you go into battle easily, adjust your senses to the best state, and concentrate more on solving murder cases.Some people will be filled with righteous indignation because the forensic doctor showed a smiling face at the scene of the murder, accusing the forensic doctor of not knowing how to respect the dead.In fact, in this world, is there any profession that knows how to respect the dead better than forensic medicine?
However, I was a little surprised when this truth was uttered by a college girl, and my impression of Chen Shiyu immediately improved a lot.I sneaked a few glances at her, and my curiosity about her grew even stronger.The car was still bumping forward, and Lin Tao seemed to be very active today, chatting with Dabao about the cases he had handled in the past, and casually glanced at the co-pilot while chatting.But in the mirror, Chen Shiyu just stared at the road in a daze, without much reaction.I secretly laughed, wondering how Lin Tao, who is used to being a heartthrob, would feel when he met such an opponent?
The car finally stopped by the side of the road, and the scene was already full of people.It took us a lot of effort to squeeze through the crowd and step into the central scene surrounded by a cordon.The scene is located under the viaduct, next to the thick concrete piers, and a tattered old quilt is spread.A shirtless male corpse lay on the quilt.
"When the body was found, it was covered with an old quilt, which covered the face. Because the deceased was bleeding profusely, the outside of the quilt had been blood-stained, so it was found abnormal." The police came up to introduce the situation.
Section Chief Hu of the Forensic Medicine Division of Longpan City Public Security Bureau saw us walking into the cordon, took off his gloves, greeted us, and said, "Long time no see, I miss you, so please come over and take a look at this case together."
Dabao was still thinking about what I said in the car, so he hurriedly said, "Don't show your smile, there are cameras in the crowd."
"Who is the deceased?" I asked, "It's just spring, the temperature is not high yet, and you sleep shirtless?"
"The identity of this person has basically been clarified." Chief Hu said, "In his thirties, he is a homeless man with some mental retardation. He has been active in this area for more than ten years. Everyone knows him and calls him Stupid. The sky is crazy, when I see a strange girl passing by, I like to grin at the past, but that's all, I won't make too much action."
"How did he survive?" I asked. "Begging?"
"He doesn't take the initiative to beg." Chief Hu said, "Sometimes passers-by see him as pitiful, and they will throw a dollar or two. If he has money, he will go to the neighborhood to buy steamed buns to eat, and if he has no money, he will look for something to eat in the trash can." Sometimes nearby residents would give him some leftovers. He slept in a nearby culvert in winter and under the pier in summer. He couldn’t be locked up in the shelter. Except for sleeping, he spent most of his time They're all hanging out."
"Who would kill such a person?" Dabao scratched his head, "One has no money, and the other is not to offend others. Do you think it is the beggar gang Xiangtang robbing the territory, so killing a person will gain prestige?"
"I think you read too many martial arts novels? I think the murderer is probably mentally ill." I said.
"Huh?" Section Chief Hu said, "Old Qin may be right. There really is no gang of beggars in Longfan, and there are no disputes over land grabs. Most of the homicide cases we dealt with before were solved. It was a mental patient who committed the crime—oh, by the way, who is this lady?"
"Oh, newcomer." I looked at Chen Shiyu, and she nodded to Chief Hu.This girl was rather courageous, and her emotions didn't seem to have changed much when she first came to the scene to see the corpse.
Chief Hu handed us several sets of survey protective equipment, and after we put them on quickly, he took us to the bridge pier, pointed to something and said, "Look."
When we put on the equipment, the quilt covering the corpse had been put into the evidence bag by the police.In order to prevent the onlookers from taking pictures, the police set up a simple tent around Sisi's body.I saw that Sisi was shirtless, and his neck and chest were already soaked in blood, but a wound on his neck was still clearly visible.Beside him is a worn-out cotton-padded jacket, perhaps the only clothing he has, and he relies on it to cover his body no matter whether it is spring, summer, autumn or winter.
On the pier next to the corpse, a fan-shaped splatter of blood can be seen, and the midpoint of the fan is located above the neck of the deceased.It can be seen that the deceased may have been in a sitting position, had his throat cut, and then fell directly on his back to death.
But the most eye-catching thing is that next to the fan-shaped splatter of blood, there are actually three big characters written in blood: "Qing", "Tao" and "Husband".
"Scavenger?" Dabao pushed his glasses and said, "What do you mean? What is a scavenger? Does it have anything to do with sanitation workers?"
"Well, the scavenger I know is a kind of fish that eats the feces of other fish." Han Liang interjected, "Many people raise this kind of fish in the fish tank, which can save a lot of trouble cleaning the fish tank. I used to I've done it, it's good. It's just...sometimes they eat the eggs together, which is not very interesting."
Han Liang is a full-time driver in our survey team. In order to realize his uniform dream, he gave up the opportunity to manage tens of millions of assets.In the eyes of many people, he is a wayward rich second generation.Although Han Liang is not highly educated, he has a lot of knowledge, so he is always invited to participate in our survey work, and he also helps us a lot.Dabao often ridiculed Han Liang as an omniscient "live Baidu", and this time he really came in handy again.
Chen Shiyu, who had been staring intently at the scene, turned his head to look at Han Liang at this time, his eyes flickering.
"I see." I thought thoughtfully, "This is an act of signing. The murderer may have compared himself to a scavenger. He thought that Si Si was the garbage of society, and by killing Si Si, he was cleaning up the world. Rubbish."
"Hmm! That makes sense." Lin Tao said while squatting next to the pier and looking at the handwriting with a magnifying glass.
"Is this murderer crazy?" Dabao said, "Why do you kill mental patients? These mental patients live in their own world, which is actually very painful. Besides, he hasn't done anything bad."
"That's why I said just now that your analysis is correct." Section Chief Hu said, "This murderer, I think, probably also has mental disorders. Generally, people who kill mentally retarded people have mental problems."
"There are indeed many cases of mental patients killing mental patients." I said, "but the act of signing on the spot is extremely rare."
"And the traces at the scene do not support that the murderer is an irresponsible person." Lin Tao pointed to the blood on the pier, and said, "These three characters have even strokes, and they must have been formed by soft objects. At first I thought they were made of soft objects. It was written by my finger, but the cement surface of this bridge pier is very smooth, but I can’t see any gauze lines or fingerprint lines.”
"Could it be written with a brush or something?" Dabao leaned over to look.
"No." Lin Tao said, "The writing brush also has the texture of hair."
"What was it written on?" I asked.
Lin Tao pondered for a moment and said, "Use your fingers with rubber gloves."
"Rubber gloves?" I was taken aback, and looked down at the rubber gloves on my hands.
Dabao quickly dipped his fingers into the pool of blood around him, drew a picture on the bridge pier, and said, "Ah, it really is the same."
Lin Tao said: "Could a crime with an anti-investigation awareness be explained by a mental patient committing a crime?"
Chen Shiyu shook his head.
"Who wears rubber gloves when committing a crime?" I pondered.
Lin Tao said: "Also, there were a lot of blood splatters, dripping blood and pools of blood at the scene, almost all around the corpse. However, I did not see blood footprints with shoe soles at the scene."
"No footprints?" Dabao said, "Could it be a ghost floating in the air did it?"
Before Dabao's words fell, Lin Tao shivered and said frightened: "Don't talk nonsense! Are you trying to scare me to death?"
Chen Shiyu glanced at Lin Tao with disdain.
"Then what is this?" I asked Lin Tao, pointing to the footprint-like traces on the ground.
Lin Tao said: "This is the outline of footprints without patterns. When we walked into the scene wearing shoe covers, stepped on blood, and stepped back on the ground, we would leave such footprints."
"You mean these are the footprints left by our policemen who entered the scene wearing shoe covers?" Dabao asked.
"Yes." Lin Tao paused, and continued, "However, if the murderer also wore such shoe covers, such marks would be left."
Chen Shiyu suddenly squatted down, rubbed his fingers against the blood on the ground next to the corpse, and said, "The murderer must have entered the scene wearing shoe covers."
"Ah?" Dabao was taken aback, "Chen Yu, how did you know?"
Chen Shiyu said: "Look, there are a few similar footprints next to them that should have been left by the police. They haven't been completely wiped out because they haven't been around for a long time. And these few footprints have been completely wiped out, which shows that the footprints left for a long time. Long. Also, my name is Chen Shiyu, not Chen Yu, thank you."
It really amazes me that a college student can make such an inference.I nodded approvingly, to support her assertion.
"Wearing rubber gloves and shoe covers, he entered the scene and killed people." Dabao said, "The one who killed was still a mental patient. It sounds like the plot of that American drama called "Bloodthirsty Forensic Doctor."
"Could it be that fans of American dramas learn the plots of TV dramas to kill people?" Chen Shiyu got my approval and talked more.
I shook my head and said, "That's killing bad people. What we met was killing a mentally handicapped person."
"Is that a challenge to the police?" Lin Tao glanced at Chen Shiyu and asked.
I still shook my head and said, "Judging from the three words left by the murderer, it doesn't seem to be for provocation."
"Could it be done by someone in the industry?" Chief Hu interjected, "Shoe covers, gloves, the equipment is quite complete."
Dabao subconsciously looked around at several forensic doctors.
I didn't say anything.
"The motive is unknown." Lin Tao said, "Go and have a look at the autopsy. I'll call Section Chief Wu of the Document Inspection Section to help check the shape of these handwritings and see if there is anything that can be broken through."
Silly Si was lying on the dissecting table, the wound on the neck was still bleeding out due to the change in body position.
In order to test Chen Shiyu's courage, I specially asked her to come to the autopsy room to help us take pictures of the autopsy.I glanced at Chen Shiyu, she was actually observing the condition of the corpse very seriously, showing no fear at all.It seems that this proud girl really has two brushes.
Silly was shirtless, wearing a pair of loose cotton trousers, the trousers were ripped everywhere, and dirty cotton protruded from the ripped places.There is a cloth belt in the loop of the trousers, which is used as a belt.Judging from the folded traces of the cloth belt, Si Si usually knotted both ends of the cloth belt to fix the trousers.And when he died, the cloth belt was untied.
"His waistband is untied." Dabao said, "Is it to relieve his hand?"
I said, "Not necessarily, maybe he untied it when he was sleeping."
Except for a cut wound on the neck, no other injuries were found on the body of the body. He was killed by a single knife.
"Do you think the incision is particularly thin?" Dabao pressed on both sides of the incision.
I did not speak, and opened the skin of the neck of the deceased according to conventional dissection procedures, and separated the neck muscles layer by layer.
"Look," I said, "this is an incision, that is, someone used a knife to cut open the carotid artery of the deceased, which directly caused the neck muscles and neck arteries and veins to be ruptured at the same time, and the blood would quickly flow from the rupture. If it is sprayed out of the mouth, people will also die due to acute massive blood loss."
"The knife was cut directly at the carotid artery. Although the incision is not long, it is very accurate." Dabao said, "The murderer took the deceased's life with one knife."
"Under normal circumstances, neck incisions are more common in two situations: one is suicide; the other is when the murderer fears that he will not die, and reinforces it after the murder to ensure the death of the deceased." I took the conversation, "However, this In this case, it should be homicide. There is no trial wound around the wound. Most people who commit suicide have a few scratches at one end of the incision, which is called trial wound, which reflects the psychology of the deceased.”
"Could it be because the deceased was a mentally handicapped person, so he didn't have the mentality to test?" Chen Shiyu asked.
I shook my head and said, "Because I am a mentally handicapped person, it is even more impossible to find such an accurate location and kill him with one knife without hesitation. More importantly, no murder weapon was found at the scene, which means that someone took the murder weapon away. on site."
"Indeed, no matter how you look at it, it won't be suicide." Dabao suddenly widened his eyes, "And, have you noticed that the blade is very thin, less than half a millimeter."
"Indeed, the cut is deep, but the cut is not torn apart, indicating that the knife is small, fast, and thin." Chief Hu said, "It's strange that the murderer used such an inconvenient weapon to kill people. .”
I snorted and said, "It seems that the murderer is very confident that he can successfully kill a person with such a small knife, because he knows the structure of the human body very well."
"Wear gloves and shoe covers." I thought for a while, and then said, "The key is to find the right anatomical location and kill him. Do you think he is a butcher with strong anti-detection capabilities?"
"It makes sense." Dabao grinned and said, "The butcher is very likely. Pigs are slaughtered by cutting their necks."
I frowned and said: "This conclusion is not based on enough evidence. Let's not make a conclusion for the time being. However, there is another question. How did the murderer approach the deceased quietly, taking advantage of his unpreparedness, and successfully find the anatomical location?" Did you do it?"
Dabao seconded: "The neck is not a good place to start. You said you came to touch my neck, will I let you touch it?"
"And Sisi wasn't sleeping at the time." I said, "According to the location of the blood splatter, Sisi should have been sitting there at the time. He should have known that he was approaching this way. I saw a man wearing gloves, shoe covers, and A person with a knife, no matter how stupid he is, he will resist."
"There is no trace of resistance or restraint." Chief Hu Ke, who had been dissecting the limbs and joints of the deceased, added.
The dissection went well, but by dissection we found nothing of value.Just like at the beginning, we still don't know what the murderer's motive is, and how the murderer can be silent and lethal.But I was shocked by Chen Shiyu's calmness. The girl silently watched the whole dissection process and completed the photography work of the whole dissection operation without any mistakes.Facing the bloody autopsy for the first time, I remember trying hard to overcome the surge in my heart, but this girl who is not a medical major didn't change her face and her heart beat.I don't know if she is really rough in this aspect, or if she is forcing herself not to show it.
In the afternoon, we returned to the scene of the crime and conducted further investigations on the scene, but still found nothing.
"The murderer didn't leave us any clues or physical evidence." I dragged my tired body and said in frustration.
"I don't know if there are any clues in the inspection by the Cultural Inspection Department." Dabao said.
"If there is any clue, I would have sent you a letter a long time ago." I looked around, and the twilight had already fallen, and said, "Let's go back today, we don't have any clues about this case, which rarely happened before."
Before the words fell, Section Chief Hu's phone rang.After answering the call, Section Chief Hu's expression became even more serious. He hung up the phone and said, "Another murder case happened in the east of the city. It's really worse. Do you want to go and have a look with us?"
"Of course!" Chen Shiyu said ahead of me.
On the way to the east of the city, Chen Shiyu received a call from Master.Judging from her answer, the master probably asked about the situation of the case, and also asked about Chen Shiyu's feelings about watching the autopsy for the first time.But Chen Shiyu always said nothing, as if he didn't care about Master's concern, and even understated his feelings about watching the autopsy.I was a little concerned, but Master actually called her instead of me.Could it be that Master wants to test us?Look at those of us who opposed her joining at the beginning, have you given Chen Shiyu little shoes to wear?Master really took great pains.
In the east of the city, the road became narrower, and the arrangement of the houses became more compact. It didn't look like a provincial city at all.On a small road in a residential area, several police cars were parked, and dozens of police officers were also divided into several groups, questioning different people.
"I feel that something is not right in Mr. Miao's house across the street." A middle-aged woman leaned against the wall and said to the policeman handling the case.She was in her pajamas and looked in shock.
"Don't be afraid, we will definitely solve the case, Sister Zhang." The policeman comforted.
"She trembled so obviously," Dabao whispered to me, "it must have been terribly frightened."
Although this early spring night was not hot, it was not cold either.With a new murder case, we tried our best to shake off our exhaustion and devote ourselves to a new battle.We surrounded Sister Zhang and began to listen to her describe the process of reporting the crime.
Half an hour ago, after eating at home, Sister Zhang was lying comfortably on the sofa watching TV.Inadvertently, she caught a glimpse of the windows on the second floor opposite the balcony, which seemed a little unusual.
This is an undeveloped area on the outskirts of the city, where some two-story houses are concentrated.Because a high-speed rail station will be built nearby soon, every inch of land here will become expensive, and every resident will become a rich man.In order to obtain more compensation during the demolition process, the homeowners scrambled to decorate their old houses extraordinarily exquisitely, and successively built some temporary bungalows in the original courtyard.From a distance, this piece of residential buildings is closely connected, regardless of each other.
Everyone in the provincial capital knows that this area is absolutely full of hidden dragons and crouching tigers.Many far-sighted people have inquired about the development plan of the high-speed rail from nowhere. They bought houses here a few years ago, waited for the demolition to appreciate, and then made a fortune.
Sister Zhang is an aborigine here, and she is more or less familiar with every family here.Especially the Mr. Miao's family who lives opposite her house, who can usually see the movement of their house from the balcony, so Sister Zhang knows the situation of the four members of this family very well.Sometimes, the lights in Mr. Miao's bedroom reflected scenes of the young couple flirting and flirting, and Sister Zhang even pointed it out to her husband enviously.That family is always talking, laughing, and loving each other, just like a model of a harmonious society.
But tonight, she discovered something unusual.
As usual, the lights in Mr. Miao's bedroom were on, illuminating the snow-white window screens brightly.However, on the snow-white window screen, there is a vaguely slanting mottled shadow, motionless and never changing its shape.Sister Zhang became suspicious, and hurried to the balcony. After taking a closer look, she realized that the speckled shadow was actually a bright red bloodstain!
Shocked, Sister Zhang pulled her husband along and walked around to Mr. Miao's house.As soon as they pushed open the half-covered door, two corpses lying on their backs in the living room and a large pool of blood came into their eyes.Sister Zhang was so frightened that she sat down on the ground, opened her mouth wide, and couldn't say a word.But Sister Zhang's husband tremblingly took out his mobile phone and dialed 110.
"How come such a good family is gone? This killer can't kill anyone! In our time, this was the 'five good families'!" Sister Zhang looked frustrated, "People say that the relationship between mother-in-law and daughter-in-law It's not good, the mother-in-law and daughter-in-law in this family are closer than mother and daughter. They walk arm in arm every day, and they always talk and laugh. When chatting with Xiao Yu, she always says that her life is good, and she has a mother-in-law who loves her. How wonderful, how enviable! Why are they gone? By the way, Comrade Police, are there any survivors in their family?"
The policeman lowered his eyes, shook his head, and asked, "Have you and your husband entered the scene?"
This is a necessary item for questioning the reporter, and it is used to identify traces at the scene.
"No." Sister Zhang said.
"You can go in now." Lin Tao came out of the scene wearing a suit of survey equipment. "The passageway to the scene has been opened. Don't step on the white line area when you go in."
"How many?" Dabao always asks this question.
Lin Tao said: "It's pretty miserable, five of them."
"Is there any valuable trace evidence?" I asked.
Lin Tao nodded and said, "There are bloody shoe prints, but they are not typical. They cannot be used as a basis for investigation, but they can be used as evidence to identify the murderer."
"That is also an important discovery." I felt a little more at ease, "The nature of the case, what do you think?"
"I'm not sure." Lin Tao said, "But there were disturbances at the scene, and there were still signs of robbery."
"Okay." While putting on the on-site investigation equipment, I greeted Dabao and Chen Shiyu, who were still listening to the police's introduction of the previous situation, and walked into the scene together.
The site is a unique two-story building, the first floor is the living room and dining room, and the second floor is the bedroom and bathroom.There is also a row of small bungalows used as wing rooms and kitchens outside the small building.The decoration in the main building is exquisite, in line with the taste of a middle-level leader of a private enterprise.Listening to Sister Zhang's address as "Miao Zong Miao Zong", it seems that the owner of this house should be a company boss or something.
In the living room on the first floor, there were two female corpses lying on their backs. They were neatly dressed and their faces were soaked in blood, so they couldn't see clearly.According to what we learned before, it should be Wang Xiuli, the mother of Miao Zheng, the head of the household, and Qi Chuanzhi, their nanny.Miao Zheng, his wife and seven-year-old son were all killed in the bedroom on the second floor.
Miao Zheng was lying at the door of the bedroom. His wife Yu Lili and son Miao Miao were lying on both sides of the bed in the bedroom.
After roughly looking at the orientation of the corpses, Dabao and I went down to the first floor of the scene again and began to conduct preliminary inspections on the corpses one by one.Although facing the bloody scene where five people died, Chen Shiyu still didn't show the slightest timidity, just silently holding the SLR and "clicking".
"The nanny is the closest to the gate, and the damage is on the top of the head." I carefully pulled the hair on the top of the nanny's head, only to see a lot of blood near the wound. "The wound can't be seen clearly, but it doesn't look like a sharp wound."
"Wang Xiuli's injury was also on the head, mainly in the occipital area." Dabao said, "There is a lot of blood staining, and it is also impossible to distinguish the shape of the wound."
Since the shape of the wound cannot be seen clearly at the scene, we will not continue to turn the corpse, so as not to destroy the original state of the corpse.In the dissection room, there is plenty of time to carefully observe the damage.
I walked near Wang Xiuli's body and saw some traces on the tiles at her feet.I took the survey light and looked at it with sidelight, and I could see a mop on the tile.At the end of the trace is the sole pattern, which is consistent with the pattern of the slippers worn by the deceased.It was a scuff-like scratch made by the deceased.
“这条划痕的形态很有意思。”我蹲下来看了看，说，“有一条长的痕迹，还有一些小的痕迹，痕迹里貌似还能看见一些拖鞋的鞋底花纹。林涛，你怎么看？”
林涛眯起眼睛，说：“我看啊，是死者在受伤的时候跌倒，然后脚在地面上蹬擦形成的。”
“赞同。”我说，“死者的损伤集中在枕部，我摸上去的时候，可以感觉到很多密集的创口。这么密集的创口应该说明死者是在一个相对固定的位置被打击的。所以，她肯定不是站着被打击的，因为站着的时候，身体会自由移动，体位就不固定了。所以，她应该是趴在地上被打击的，这样就可以解释这个蹬擦的痕迹了。死者被打击的时候，双腿在地面蹬擦，才形成了这样的划痕。”
“这个分析有什么意义呢？”陈诗羽问。
“有意义。这说明凶手杀完人后翻动了尸体。”我见陈诗羽虚心好学，就用亲切的语气说，“咱们发现的尸体是仰卧在地面的，和我们分析的她趴在地上被打击致死的体位不符。”
“凶手为什么要翻动尸体？”陈诗羽接着问。
我摇摇头，说：“尸体头部都是血迹，所以我也不敢下什么结论，等尸检完了就知道了。”
说完，我沿着现场的数十个血足迹走了一圈。现场有很多密集的血足迹，方向各有不同。但是可以看出，鞋底花纹只有一种。
“一种鞋底花纹不能确定只有一个凶手吧？”我说，“会不会是两个或两个以上的凶手买了一样的鞋子来作案的？”
林涛摇头，说：“只有一个凶手。这些鞋印我都看了，有一个鞋底磨损点的特征是完全一致的。凶手想伪造这个特征是不可能的。而且，现场那么多血，如果有两个人，另一个人肯定也会留下足迹。”
我点头认可。
仔细看去，血足迹从保姆头部的血泊开始，延伸到王秀黎尸体的头部旁边，然后汇成一趟，向楼梯口延伸。
“你们看，这人的步伐多大。”林涛一只脚站在血足迹旁，另一只脚使劲儿往前跨了一步，“我得这样跨步，才能完成他一步的步伐。”
“进击的巨人吗？”大宝推了推鼻梁上的眼镜。
“这说明了两个问题。”林涛白了大宝一眼，“第一，这个人杀完王秀黎后，是跑着上楼的。第二，这个人的个子应该很高。”
“个子高是肯定的。”我说，“我也有依据。”
“哦？”大宝抢着问，“什么依据？”
我没有回答大宝的问题，招呼大家再次走上了二楼。
二楼的血足迹更加凌乱，但是仍然可以分辨出，这是同一种鞋底形成的足迹。血足迹在二楼主卧室的门口开始互相叠加、破坏，说明凶手和被害人在这里有过一个打斗的过程。但是打斗随着手无寸铁的男主人苗正的倒地而终止。
看足迹的形态，凶手在杀死苗正后，直接进入屋内，把母子二人逼到了墙角后，将其杀死。在这个逼退的过程中，母子二人都有蹲下来的动作。头部受伤后，血迹还沿着头部、颈部滴落到了大腿和小腿处的衣物上。这些流注状血迹的走向，告诉我们母子二人当时都是蹲着被打击的。而且，母子二人没有任何抵抗。
尤其是俞莉丽的面部，除了遍布的血迹以外，隐约还可以看见泪痕。
因为现场地面光滑、干净，而且遍布血足迹，这给我们对这个现场进行重建提供了良好的条件。我们可以沿着血足迹的方向判断凶手在杀完人后的行走路线，从而判断他这些动作的目的和意义。
林涛沿着地面上的血足迹走着，说：“凶手杀完人以后，就开始在屋里翻东西了。”
主卧室里的衣柜以及另一个卧室里的衣柜都被翻动了，凶手是用一种很暴力的手段翻动的，几乎衣柜里所有的东西都被凶手拽了出来，然后抛撒在地面。大衣柜的门上可以看到血手套印，说明凶手是戴着手套进入现场的。大衣柜里的物品上沾染的血迹，同样也提示凶手是在杀完人后，立即翻动了衣柜。
血足迹从主卧室出来后，开始通往次卧室的方向，凶手同样对次卧室的大衣柜进行了翻动。从次卧室里出来后，凶手径直进入了卫生间，然后我们就没有找到走出来的足迹了。
“这样的足迹现象，说明凶手进卫生间，是为了清洗自己身上的血迹。”林涛说，“而且清洗得很干净。”
“当然，凶手行凶的时候，可能天还没有黑，凶手总不能一身是血地走上大街吧？”大宝很能理解凶手的这个动作。
“凶手只翻动了死者家的衣柜吗？”我拉开床头柜的柜门，里面的物品很整齐。
“是啊。”大宝说，“电视柜啊、梳妆台啊什么的，都没有一点儿翻动的痕迹哦。”
“是。”林涛点了点头，然后又使劲儿摇头，“不不不，不只是这两个大衣柜。楼下的冰柜也被翻动了。”
“翻冰柜？”我甚是诧异。
林涛说：“你们刚才在楼下没有注意到吗？楼下餐厅一角有一个冰柜，里面的东西，一些水饺啊、包子啊、冻肉啊什么的，都被拿了出来，说明冰柜里面肯定也被翻动过了。”
在楼下勘查的时候，因为注意力都集中在地面的足迹上，所以我还真没注意到餐厅一角有一个什么冰柜，更不会注意到这个冰柜里的东西被翻了出来。
“这个动作有点儿意思。”我低头沉思。
“而且冰柜附近没有血足迹。”林涛说，“应该是凶手在楼上清洗完以后，再下楼的。”
“看来这个案子，你们痕迹检验部门的工作很顺利啊。”我说，“至少现场重建是完成了。现在都七八点钟了，等殡仪馆的同志来运尸体吧。我们去专案组听听情况后，再去尸检。”
龙番市公安局在现场附近临时征用了一家住户搭建的平房作为专案指挥部，指挥部里除了专案组组长和几名侦查员在研究侦查措施以外，其他人都被派出去调查访问了。
主办侦查员知道我们进来，是想知道一些前期调查情况，于是他开门见山地说：“死者苗正，三十八岁，名校毕业，是国临科技的技术部主管，是公司的核心管理层。刚才通过公安内部互联网，我们了解到，之前几天苗正因为涉嫌故意泄露商业秘密罪被我局经侦支队调查，但是没有像样的证据，所以没有抓人。”
“泄露商业秘密？”我摸了摸下巴。
“嗯。”侦查员说，“有人举报他在秘密出售公司的商业情报，所以进行了例行调查。苗正的母亲王秀黎，六十六岁，原来是区民政局副局长，退休十几年了，为人和善。群众反映，她和儿媳妇俞莉丽关系非常好，情同母女。俞莉丽，三十一岁，自己在网上开了一家淘宝店卖时装，除了出门进货，或是和婆婆一起逛街，其余时间一般都在家里待着。家里还有一个保姆，五十二岁，刚聘来一个月。还有就是一个七岁的孩子。你们那边情况怎么样？”
林涛说：“现场条件很好，我们不仅提取到了物证，还重建了现场。凶手应该是敲门入室的，因为大门没有被撬压、损坏的痕迹，窗户也都是完好的。入室后，凶手先袭击了保姆和王秀黎。可能因为二人呼救，惊动了二楼的一家三口，凶手迅速从一楼跑到二楼，在主卧室门口遭遇苗正，二人发生了短暂的搏斗，但是体力、武器悬殊太大，苗正很快被打死。然后凶手把母子二人逼退到墙角，逐一杀害。杀完人后，凶手对两个房间的大衣柜进行了翻动，再去卫生间清洗血迹，然后到一楼翻动了冰柜，最后离开现场。”
“侵财可以定吗？”侦查员问。
我摇摇头，说：“翻动的位置比较奇怪，大衣柜、冰柜，这不是存放财物的地方啊。一般的劫财案件，肯定首选床头柜、梳妆台什么的。可是这些地方都没有被翻动。”
“你的意思是说，凶手的这些翻动，是在伪装现场，转移警方的视线？”侦查员问。
我说：“不能排除。”
“好的。”侦查员说，“我们同样也觉得凶手在现场停留的时间非常短，不像是侵财案件，更像是仇杀。我们会继续调查苗正的社会关系，尤其是举报他的那个人。”
“嗯。”我点头说，“我也要去检验尸体了。”
五具尸体如果逐一检验，至少需要十个小时的时间。此时已经是晚上八点多，岂不是得干到明天早晨？
好在省城新建的解剖中心有两间解剖室，每间解剖室里有两至三台解剖床。解剖室的门是相对而设的。这样的设计，可以同时开展数台解剖，大大提高了工作效率。而且，解剖的时候，几组法医只要走出门，就可以和其他解剖室里的法医交流。
我和大宝走进一号解剖室，负责对现场一楼的两具尸体进行检验，陈诗羽负责照相。而市局胡科长和韩法医则在二号解剖室，和我们同时开展工作，负责现场二楼的三具尸体，林涛负责照相。
王秀黎和齐传芝的致命伤都在头部。
我和大宝把躺在两张解剖台上的尸体的头发依次剃除，各自暴露出了头部的创口。两名死者的头部创口创角撕裂，创缘不整，创口里还可以看见没有完全断裂的组织间桥。数个创口纵横交错，但是可以看得出创口的边缘都有挫伤带。
“两名死者都死于钝器所致的颅脑损伤。”我触摸了死者的头颅，说，“我能感觉到，两名死者的颅骨都有很严重的粉碎性骨折。”
“先检验王秀黎的尸体吧。”大宝见照相人员已经固定了尸体的原始面貌，便按尸检常规，在尸体全身分段提取物证。
我剪了一块纱布，用水沾湿，开始清理王秀黎的面部血迹。血迹已经干掉，形成一块块血痂，和面部皮肤粘得很牢。
慢慢地，王秀黎的面容呈现了出来。同时，她额部皱纹里的一处创口也随着血迹的清除而暴露出来。
“咦？”大宝蹲下来看了看王秀黎后枕部密集的创口，说，“创口都在枕部，怎么额部也有一处？会不会是俯卧打击，额部衬垫在地面上形成的？”
我摇摇头，说：“不，如果是衬垫伤的话，在那种瓷砖地面上，只会形成挫伤，不会形成创口，而且创口周围有挫伤带，说明这是一个有局限的接触面积的工具形成的损伤。”
大宝若有所思，点点头。
我接着说：“而且，这是一处死后伤。生前伤和死后伤的判断，是法医必须具备的一项最基础的技能。损伤是生前形成还是死后形成，有的时候对案件的侦破起着至关重要的作用。法医判断生前、死后伤的主要方法就是观察创口有没有生活反应。生活反应就是只有机体存活的时候才有的反应，比如出血、充血、梗塞、吞咽、水肿、血栓等。创口的生活反应主要表现在创面有没有出血，以及创缘皮肤有没有卷缩。生前形成的创口，创面会呈现出红色，边缘有卷缩；而死后形成的创口，创面会呈现接近皮肤颜色的黄色，边缘也不会有卷缩。”
我说得这么烦琐，意在教授身边的新人陈诗羽。陈诗羽很聪明，理解我的意思，一边拍照，一边不忘认真地听着，时而点头。我们都在努力消除刚见面时产生的嫌隙。
王秀黎额部的创口，创面蜡黄，边缘哆开，是一处典型的死后损伤。
“死了还要对着额头打一下？”大宝问。
我摸了摸创口，说：“这一下还不轻呢，下面的骨折很重。看来，对着额头再来一下，就是凶手要把王秀黎的尸体翻转过来的原因。”之前对现场勘查时，我们曾经判断凶手在杀完人后，又把尸体翻转了过来。
“什么意思？”大宝对我的分析不太理解，一脸茫然。
我微微一笑，说：“别急，回头再分析。”
打开王秀黎的头皮，可以看到她的枕部几乎已经完全碎裂，脑组织从骨折的缝隙里透了出来，一片阴森森的白色。
这样的颅骨几乎无法再用电动开颅锯锯开了，我们只能用手锯，将还没有断裂的颅骨部分锯开，然后拿下了一块边缘凸凹不平的颅盖骨。
颅腔内的脑组织已经挫碎，形态不清。硬脑膜被骨折了的颅骨的尖锐端戳裂了好几个破口，因为巨大的打击作用，颅内尽是出血和血肿。
“好惨啊。”大宝皱着眉头叹道。
我说：“是啊。凶手力气不小，而且使用的工具也应该是坚硬、质量重的金属钝器。”
“这么大岁数了，还是不得善终，唉。”大宝又开始了他的感悟人生。
按照常规的解剖术式，我们继续解剖了死者的胸腔、腹腔和背部，没有发现什么异常。根据死者的胃内容物判断，她应该是在晚餐后不久死亡的。
“我觉得这个案子的死亡时间比较容易定得精确。”我说，“我们到现场的时候是七点，此时已经是张大姐发现后半个小时了。而死者已经吃完了晚饭，一般人晚饭都在五点到六点之间吃，这说明死者是在五点到六点半之间死亡的。结合我们去现场的时候，尸体的尸僵和尸斑都还没有形成，可以肯定死者是六点左右死亡的。凶手胆大妄为啊，这个时间天也就刚黑，就敢入室杀人。”
“如果不是很熟悉的人，这个时间通过敲门可以入室的概率比晚上大多了。”陈诗羽说。
“有道理。”我赞许道。侦查专业学生的思维和技术专业不同，有时候确实可以起到优势互补的作用。
“也就是说，张大姐早半个小时看一下死者家里，说不准就能透过窗户看到凶手杀人的背影了？”大宝看着解剖室的天花板，臆想着。
我说：“杀人过程很短暂，能被看到的话就是巧合了。”
解剖完后，我重新观察死者的头皮。
“致伤工具可以定吗？”我说。
大宝说：“铁质钝器可以定。”
我指着头皮上一些弧形的创口说：“还记得吗？这些创口下面的颅骨骨折都是类圆形的。圆形的铁质钝器，就是锤类的工具了。”
“拿锤子来杀人，当自己是李元霸啊？”大宝说。
检验完王秀黎的尸体，我们继续检验齐传芝的尸体。
和王秀黎一样，她同样死于金属钝器打击，导致颅脑损伤死亡。颅脑损伤的程度也非常严重，颅骨大面积粉碎性骨折，脑组织挫碎。和王秀黎不同的是，齐传芝的损伤集中在头顶，同样十分密集。
“作案手段完全一致嘛。”大宝说。
我没有说话，拿起放大镜在齐传芝的胸口看了起来。
“发现了什么吗？”大宝凑过头来看。
我微微笑了下，说：“死者胸口有几处小片状的表皮擦伤，很浅，不仔细观察肯定看不到。但是这几处擦伤很新鲜。”
“这有什么用吗？”大宝说。
“刚才我说过，凶手个子很高，你们记得吧？”我问。
大宝说：“对对对，我都忘记问你怎么回事了。”
我说：“二楼的母子头部损伤也在顶部，但是说明不了问题，因为我们通过血迹判断他们是蹲着的。既然是蹲着，凶手打击他们肯定打在头顶部。但是齐传芝的不一样。根据她死亡的位置，她应该是去开门的人。她不仅开了门，还把凶手往客厅里引了几米，然后才遇袭的。当然，在这个过程中，她不可能蹲下来，凶手也不会让她蹲下来。但是你们注意到没有，齐传芝身高一米六五，比较健壮，凶手如果没有足够高的身高，是不可能打击到她的头顶部的。”
“你是说凶手没有对齐传芝进行控制，而是直接打击？”大宝质疑，“可是齐传芝头顶部的创口也是非常密集的，说明她处于一个相对固定的体位，这个固定的体位是怎么做到的？”
我说：“这几处表皮擦伤就可以说明问题了。从损伤来看，这些擦伤是指甲抓的。也就是说，凶手进入家门后，突然抓起保姆的衣领，然后用锤子打击她的头部。因为凶手力气大，所以被抓住衣领的保姆没法过多反抗，体位就会相对固定，创口也就密集了。”
“有道理。”陈诗羽说。
我接着说：“当然，这几处表皮擦伤，还有别的用处，等回到专案组再说。”
解剖完，我们走到二号解剖室，见胡科长他们的工作也基本完成了。
“我们两具刚完成，你们三具都快完成啦？”我说，“工作效率真高。”
“小孩的尸体检验得快。”林涛说，“就是太惨了，对心理影响比较大。真不该跟他们一组。你们有了美女，就想抛弃我吗？”
省厅法医主要跑一些疑难命案现场，而市局法医则要承担大量的普通命案以及一些非正常死亡的尸体的解剖检验，解剖量比省厅法医大得多。所以论解剖功底，还是这些市局法医更加娴熟。更何况胡科长和韩法医都是工作十几、二十年的熟手了，解剖速度自然要比我们快很多。
“怎么样？”我突然觉得林涛像是在向陈诗羽献媚，所以岔开话题问道。
胡科长说：“三具尸体的损伤基本一致，都是头部被金属钝器打击所致颅脑损伤死亡。苗正的头部损伤凌乱一些，可以看得出是在运动中被打击的。女人和小孩的损伤比较集中，应该和我们之前分析的一样，是在墙角蹲着没有反抗的情况下被打击的。”
“就这些？”我追问。
“还有，就是三个人的胃内容充盈，应该是刚吃完晚饭。”胡科长侧头看了看旁边解剖台上的尸体，说，“哦，对了，女人的额头上有一处死后损伤。”
“哦？”我来了兴趣，“会不会是女人在被打击的过程中死亡，但凶手连续攻击，所以导致了一处死后伤呢？”
胡科长摇摇头，说：“女人的头部遭重创，但这个死亡是需要几分钟时间的，所以不会是连续打击所致，而且这一处损伤很孤立。应该是凶手把女人打倒后，再去翻找钱财，最后又回到女人身边打击了一下已经处于仰卧位的女人的额头。这个时候，女人已经完全死亡了，所以才会表现出无生活反应的迹象。”
“太好了！”我说，“去专案组吧！我对这个案子的侦破有信心了。”
不知不觉六个小时已经过去了，此时已经是深夜两点半。
有很多传言说，深夜两点半是个诡异的时间，很多诡异的事情都会在这个时间点发生。我倒是经常写书写到深夜两点半，此时一般都会灵感突发，倒是没见过什么诡异的事情。但此时此刻，我有一种预感，这个深夜两点半，或许就是案件转折的关键点。
专案组依旧是那样烟雾缭绕。
我们走进专案组，林涛关切地问陈诗羽：“呛人不？”
陈诗羽淡淡地摇了摇头。
主办侦查员见我们进门，急巴巴地说：“经过几个小时的调查，没有发现苗正有什么仇人。那个举报人因为是写匿名信举报的，所以也找不到。从目前的调查情况看，仇杀的迹象不是很明显。”
“哦？”我的脑子里一直在想着破案的捷径，对于案件性质的问题倒是没有思考太多，所以一进专案组的大门，听到这么一句，一时间