Chapter 10 The Ninth Case

This scene that only appears in horror movies has truly appeared in front of us.After the deceased's eyelids were opened, the entire eye sac was black, and the white conjunctiva could not be seen. The annual vacation of civil servants, which many people envy, is very rare in public security organs.In the past, the police hardly knew that they should have this kind of annual leave every year according to the working years and the dates. In recent years, cases of karoshi often occur in the civil service system, especially in the police force. Although the leaders will not intuitively feel the pain of their comrades in front of the corpse like a forensic doctor, the leaders still understand the protection of the legal annual leave of the police. importance.However, even with repeated orders from superior leaders, grassroots leaders still cannot resolve the extreme conflict of fewer people and more work, so they will always reject the police with the reason of "too busy recently, otherwise, your annual leave will be postponed?" Application for annual leave.Of course, in more cases, it is the police who know that they cannot leave their posts and cannot burden their comrades, so they voluntarily give up their vacations.

In order to prepare for the wedding photo shoot, Dabao took three days of annual leave.Although Dabao only took three days of the five-day annual leave, he still dedicated half a day to hand over the work to us with guilt. "This is an injury appraisal in Qingxiang. Section Chief Xiao and I did the injury examination together." Dabao handed me an appraisal file and said, "This is a child who was injured and had a fractured skull. The forensic doctor of Qingxiang City Bureau assessed it as a minor injury according to the standard. However, during the course of the disease, the parents of the child found that the child twitched twice, thinking that the child had traumatic epilepsy and should be classified as a serious injury, so they sued the forensic doctor of Qingxiang City Bureau everywhere. The Disciplinary Committee and the inspectors have gone to investigate two or three times. They are always investigated for no reason, and the local forensic doctor is very helpless, so they can only ask us to conduct a re-identification."

"Traumatic epilepsy?" I asked, "Is there a pathological basis?" "No." Dabao said, "the brain tissue is not damaged." "What about the symptoms and signs?" I asked. Dabao said: "Except for the family members, no one reported symptoms of epilepsy, and the 24-hour EEG monitoring showed no abnormalities." "Isn't that just a fake injury? What else do we need to do for identification?" I asked. Dabao shook his head and said nothing. Many parties to disputes worry that the forensic doctor will be deceived by the other party’s “fraudulent injury” (the difference between fraudulent injury and fabricated injury: fabricated injury refers to the fact that the parties create their own injury and frame the other party; fraudulent injury refers to an injury that is faked without injury).In fact, forensic identification must first clarify the pathological basis of the injured, then analyze the relationship between the pathological basis and symptoms and signs, and finally make an identification based on some symptoms and signs of the injured.

"Also, the ENT Department of the Provincial Hospital, besides Lao Sun, do you know anyone else?" Dabao asked. While reading the case file just now, I said, "Yes, Drifting." "What and what." Dabao didn't understand my humor, and said, "Here is another case that requires expert consultation." "Then you can ask Lao Sun to introduce you to other experts." I said. Dabao said, "If I can get in touch with Lao Sun, I won't ask you this question. I don't know where Lao Sun has gone." I said, "You must have been captured by a monster."

"Let's be serious." Dabao said, "It's serious!" I snorted and said, "Leave this matter alone, leave it to me, Bajie, I'll go find Tathagata." Chen Shiyu sprayed a mouthful of water on the computer screen with a "poof", and quickly found a napkin to wipe it off. , Said: "I hate it, don't I hate it." Dabao's three days of rest were not peaceful at all.A lot of review appraisals were received, and two expert consultations were organized. Forensic medicine is equivalent to a general practitioner, who must master the basics of the professional knowledge of each department, but it is difficult to have a very good professional knowledge of clinical medicine.Therefore, when encountering difficult injury identification, the most common method used by forensic doctors is to organize relevant professional experts from the hospital to conduct consultations.In this way, more professional knowledge of the department can be learned, and the objectivity and accuracy of the appraisal conclusion can be guaranteed.

In addition to the identification of injuries, we will also receive "homicide cases". This morning, a dead body was found on the sand field of a construction site in Longpan City.The body was buried in the middle of the sand.Since it was a case of burial, we were invited by the Longpan City Public Security Bureau to rush to the scene and deal with it. Lin Tao was the first to discover the abnormality at the scene.Because after careful investigation of the sand field, except for the footprints of the two workers who transported the sand and the footprints of the deceased himself, no footprints of the fourth person were found, so, apart from these two workers, no fourth person will have arrived on site.However, when these two workers were taken back to the criminal police team as suspects, they screamed for injustice.

After examining the corpse, the forensic doctor found that the deceased's esophagus and trachea were full of sand.It is certain that the deceased was buried alive in the sand.So, who would choose to kill in this way?Use this fundamentally difficult method to kill a man in his prime and with a strong body? Fortunately, the video investigation department found clues.In order to prevent thieves, the construction site installed a video surveillance camera at the gate, and a corner of this surveillance camera happened to be able to capture the location of the sand pile, and the truth of the case suddenly became clear.It turned out that the deceased wandered after drinking, and when he came to the construction site, he urinated next to the sand pile in the sand field.He didn't notice that the large truck on the battlefield was unloading sand at this time, and the driver of the large truck never expected that there would be a person behind the truck.As a result, a cart of sand poured down, burying the dead alive.

"If it weren't for the cameras, I would never have thought of this result." Lin Tao looked at the surveillance video that was repeatedly played in front of him. I nodded and said, "There is nothing impossible in the world. This incident reminds us that we should think more broadly in analyzing cases in the future. Otherwise, those two workers who transported sand would be wronged." We, Corey, are all serious pseudo-fans, so, of course, the opener of the European Cup late on Friday night cannot be missed.After agreeing to accompany Bell to go to the baby products on Saturday morning, I was successfully granted leave.A few people from our investigation team even invited Chen Shiyu to sit around the round table at the food stall late at night, drinking beer, eating lobster, and commenting on the players on the big screen.

"Hey, it's already June 9th, Dabao is going to take wedding photos today, right?" Lin Tao said. "Yeah." I pretended to be someone who has been there, and said, "That's why he won't come to our party. He has to get up early and be tired all day." "This native, what date did you choose? It's still 69!" Han Liang said wretchedly. "What do you mean? Why is life so bad?" Chen Shiyu wiped the corners of his mouth with a napkin. Lin Tao said, "Rogue." The dinner party went on until late at night, and when we went home, we must have fallen asleep immediately.Until the next morning, I was awakened by the ringing of the phone on the bedside table.I jumped up, picked up the phone and saw it was Dabao.

"It's a big Saturday, if you don't take good pictures, why call me?" I muttered and connected the phone. "It's over, your sister-in-law Bao ran away, and she won't marry me." Dabao said this in a crying voice. One sentence made me, Monk Zhang Er, confused. Before I had time to ask in detail, Master's phone call came in very aggressively. "Don't worry, we'll talk in detail later." I comforted Dabao briefly, and switched to Master's phone number. "Longpan City Park, the mandarin duck lake in the middle, a female corpse, suspected of homicide." Master summed up the time, place, and people very succinctly, "You all set out to provide support immediately."

Hearing that there was a murder case, I quickly started to put on my clothes, while comforting Bell with the guilt of breaking the appointment, I picked up the mobile phone and called Han Liang, Lin Tao and Chen Shiyu. At this moment, I have completely forgotten about Dabao's shocking bad news. Several of us were in a sleepy state, and we drove to the city park in the new district of Longpan City with the siren on. The city park is an open park built in the new district after the major construction of Longpan City.The park is like an oasis, without walls, and the scenery is unique. Citizens can drive in and out freely, and they can also park near the scenic spots.Of course, this treasure land has also become a good place for some elderly people who have moved to a new residence first to take a walk and exercise. The center of the park is an artificial lake, which is small in size but complements the surrounding landscape.The central scene is there.We drove directly to the side of Yuanyang Lake, where a cordon had been pulled up, and the police who arrived first were taking notes on several people. As soon as I jumped out of the car, I saw Dabao sitting in a daze on the stone bench outside the cordon. "Hey? Why are you here?" I smiled in surprise, "I just experienced a emotional blow, and I can get back to work so quickly? In order not to grow hemorrhoids, can you come to the survey site at this time?" "That's right, I was just saying, how could such a good scene not call Dabao? What's wrong with him?" Han Liang sat next to Dabao and asked. "Ask him." I pointed to Dabao and asked, "What's going on?" "I found a dead body, and then Menghan ran away, saying that he would not marry me." Dabao said with aggrieved expression. Baosao's name is Zhao Menghan, and she has a foreign name that she is proud of.Ever since her name was discarded by us and replaced by the nickname "Sao Bao", which has a strong local flavor, she often complained about Dabao, saying that Dabao had caused her trouble. "After a long time, you are the informant of this case." I said, "I said, everything is tied together." "You are a forensic doctor, and Mrs. Bao knows, what happened to you when you found a dead body?" Lin Tao asked in surprise, "This is very normal for you." "Don't worry, let Dabao recount the incident." I said. Dabao swallowed, and said: "This wedding company that pays thousands of dollars insists on pulling us here early in the morning to take wedding photos, saying that it is a new scenic spot, which is easy to produce results." "Sister-in-law Bao can produce effects. You, it's the same wherever you shoot." Han Liang laughed. Dabao gave Han Liang a blank look, and then said: "If you come here to take pictures, just come here to take pictures, and you still have to let us take pictures by the water. I am most afraid of the water in this scenic spot. We are always in this kind of water. A dead body was found in the hospital. So, I have a bad feeling today." "I didn't expect your premonition to come true?" I asked. Dabao nodded, pointed to a long-haired literary youth who was taking notes in the distance, and said, "The photographer who was paid a thousand dollars insisted that we both squat by the water and let me draw the water with my hand. Swipe it Forget it, but in the end it's always swipe, swipe, swipe, and I just swipe and pull out a human hand." Dabao paused, and I asked, "And then?" "Then?" Dabao rolled his eyes and said, "Then I found a floating corpse in the water, and then Menghan said, don't take wedding photos, and we don't want to get married either, and then she wore a wedding dress to take pictures. Got a car and ran away." "You must have said something." I said, "She is wearing a wedding dress, and you can't run away from her? Wouldn't it be better to stop her and coax her?" Dabao swallowed again and said, "The key is that I am protecting the scene. When I heard her say this, she had already run away." "Let me tell you." I said, "It's definitely not as simple as you said." "Actually, it's nothing." Dabao said, "At that time, I felt something in the water. I pulled it hard and saw a human hand. Then I grabbed the sleeve and lifted the body up without saying anything." "Ah? Is Mrs. Bao nearby?" Han Liang asked. Dabao rolled his eyes again and said, "Forgot." Everyone sighed together. Dabao went on to say: "I pulled it up and saw that it was a female corpse, and I heard screams all around. I was afraid that everyone would spoil the scene. On the one hand, I asked the photographers and makeup artists to stop running around and wait for the work." The transcript, on the one hand, is all about protecting the scene." "I would run away too. In your eyes, a corpse is more important than a wife. Who wouldn't run away?" Chen Shiyu said. "Indeed, you are a forensic doctor, but in this incident, you are just an ordinary person. Your first reaction should be to protect and comfort your fiancée!" A person who deserves to be single for the rest of his life!" Dabao lowered his head in frustration and said, "I know I was wrong." "What should I do next?" Seeing Dabao's depression, I couldn't bear it. After all, it can be seen from this point how much he loves his career. "I have to find a way to get my wife back," Dabao said. Chen Shiyu corrected, "It's an ex-girlfriend." Dabao lowered his head again in frustration. I waved Chen Shiyu to stop, and said, "Well, leave this case alone and leave it to us. Maybe it's a suicide?" "No." Dabao said, "There is a neck injury." "It's really you!" I didn't know what to say, I said, "Are you here to take wedding photos, or to do an autopsy? Don't let your career invade your life, okay?" "Hasn't our profession invaded our lives?" Lin Tao was a little sad, looked at Chen Shiyu, and said, "For people like us, we only deserve to find colleagues in the same industry as partners." I said: "Anyway, let's handle this case. Dabao can go and coax Mrs. Bao. I can understand her mood. You dragged a corpse to her without warning, and then Arranging work regardless of her feelings, excessive shock and excessive disappointment, you have to work hard." "Don't analyze my wife's psychology in the same way that you analyze a criminal suspect's psychology, okay?" Dabao said. "It's an ex-girlfriend." Chen Shiyu said. It was the first time I found this proud little girl with a poisonous mouth. Dabao lowered his eyes and said, "I want to handle this case with you, and I want to catch this bastard who made me emotionally frustrated. After solving the case, you can help me coax it together, okay?" I looked at Dabao, thinking that I really couldn't do without this tacit assistant, and said, "Okay." I straightened up and looked around the scene.Because this is a public place, it is estimated that it is impossible to obtain any trace evidence on the ground. "The surface of the water is too big, it's impossible to drain it." Chief Hu said beside him, "I don't know what else there is at the bottom of the water." "Yeah, it looks like this woman's clothes are relatively complete." I looked at the corpse lying flat on the ground and said, "Maybe there will be belongings at the bottom of the water." "I'll call the frogman." Chief Hu said. I nodded and saw more and more people watching around me, and said, "Drag the body away first, it's not good to spread the photos." Soon after the body was dragged away by the car of the funeral home, two frogmen sent by the fire brigade went into the water one after another.There is nothing to investigate at the scene, we just sit on the bank and wait anxiously for news of the frogmen. The belongings of the deceased are very important to the detection of the case. Generally, things that can prove the identity of the deceased can be found in the belongings, which saves a lot of trouble for the forensic doctor.For example, there is no need to remove the pubic symphysis for age inference. The water area of ​​Yuanyang Lake is not big, but it is also not small. Fortunately, it is an artificial lake, and it has not been built for a long time, and there is not much silt at the bottom of the lake.About half an hour later, a frogman emerged from the water with his head raised while raising his hand.We can clearly see that he is holding a lady's purse in his hand. Several of us cheered in unison, and patiently waited for the frogman to swim to the water's edge.I put on my gloves and took the leather bag in the water. Lin Tao quickly pasted a scale to take a picture. This is an ordinary leather bag that looks fine, but is not expensive. It is still very new overall, and the zipper of the bag appears to be locked.With the mentality of scratching a lottery ticket, I gently opened the zipper of the bag. There was a lot of water in the bag, so I put a layer of plastic sheet on the ground, and then poured out the contents of the bag together with the water.There is a cosmetic bag, a key case, and some odds and ends. Unfortunately, there are no wallets, mobile phones, and card cases. There are no documents or items that can directly prove the identity of the deceased. "There is no wallet or mobile phone." Dabao said, "With so many things in the dead man's bag, there must be a wallet and mobile phone." "You mean, is this a case of robbery and homicide?" Lin Tao's brain was wide open, "First robbery, then sex, and finally murder!" "I didn't say anything." Dabao was very cautious, "But only the loss of wallet and mobile phone is more or less pointing to money infringement." "Although the zipper of the bag is pulled, it is impossible for the objects inside to leave the bag due to the buoyancy of the water." I said to the frogman lying on the shore, "but it does not rule out that criminals put wallets, mobile phones, card bags and The purses are discarded separately. So please help me, can I look for it a little longer?" The frogman nodded and headed back into the water. At this point, I had given up hope for this shortcut to confirm the identity of the deceased, so I waved to a few of them and said, "Drive to the funeral home and find out the basic situation of the corpse first." The dissecting room of a funeral home is a very eerie place.Under normal circumstances, funeral homes are located in the suburbs far from the urban area, and the custom here is to hold a farewell ceremony for the remains in the morning, so in the funeral home near noon, only the cry of cicadas on the tree can be heard. In the past, once our working group entered the dissection room, this gloomy and silent place would immediately become lively.Because of Li Dabao, such a treasure, such a solemn place will become very unserious.We all deliberately kept silent during the examination of the corpse, but the cute Dabao always made people laugh. Today is different. Dabao has just suffered an emotional blow, and he seems to be more silent than any of us, so in this empty house, only the sound of stainless steel instruments colliding can be heard. "The deceased was wearing a white short-sleeved shirt and pink underwear; he was wearing a denim skirt and pink briefs; he was barefoot, and he was wearing a pair of mesh sneakers." Dabao and I took off the clothes of the deceased one by one, deliberately Announce the inspection situation loudly, in order to break the unaccustomed silence.Chen Shiyu quickly recorded from the side. "The clothes are complete, the buttons are not missing, and the clothes are not damaged." Section Chief Hu took the clothes of the deceased I took off and checked them. "The corpse was mildly decomposed, and green corpse appeared in the abdomen." I said. "How long do you think the deceased has been dead?" Dabao finally spoke. I said, "From what you said just now, the deceased should be suspended in the water." Dabao nodded. I went on to say: "The deceased did not fully float up, but was in a floating state, and green corpses formed on the corpse. In this situation, in this kind of weather, it is estimated that he died for at least forty-eight hours." "That is... before the morning of the 7th." Dabao pondered. As soon as the deceased's clothes were removed, we saw a red butterfly tattooed on her lumbosacral region.The patterns on the butterfly wings are very complicated, but the whole butterfly looks lifelike. "The level of this tattoo is not low." Han Liang still leaned against the door of the dissecting room with an idle look, and said, "I can see the 3D effect from far away." "Whether it is a high level or not, this is the best sign to identify the identity of the deceased." I said, "At least we don't need to bother with sawing and boiling the pubic symphysis anymore, and we can leave a whole body for the deceased." After taking photos and recording the tattoos of the deceased, the autopsy officially started. "The dead man's rigor has been relieved." I said, "The corpse spots are dark purple." "Ah!" Dabao yelled suddenly, startling everyone. "What's wrong?" I said, "Don't be surprised." Dabao pointed to the slightly opened eyes of the deceased, and said, "Look for yourself, it's frightening to death." Since ancient times, there has been a saying in the folks that "death cannot rest in peace".Common people always think that when the deceased died, if he did not close his eyes, it means that there was grievance or unresolved concerns.In fact, from a forensic point of view, this theory has no basis.The eyelids are located in front of the eyeball and form a barrier that protects the eyeball.Below the skin and subcutaneous tissue layer of the eyelid is the muscle layer, mainly the orbicularis oculi and levator muscles.The contraction of the muscles controls the opening and closing of the eyelids.Generally, after death, the human body will immediately enter the stage of muscle relaxation. The opening and closing state of the eyelids is affected by the state of the eyelids at the time of death, which may be open or closed.With the formation of rigor, most of the eyelids are slightly opened, and at this time it may not be easy to artificially control the opening and closing of the eyelids.After the rigor is relieved, the eyelids can be artificially opened and closed again.On rare occasions, muscle spasms immediately after death may also cause the eyelids to open. Dabao was inspecting the head and face of the deceased according to the routine autopsy sequence. He didn't know why the eyes of the deceased frightened him. "What's wrong? Isn't this normal?" I walked to the side of the corpse, looked at the slightly opened eyelids of the deceased, picked up the hemostat, clamped the upper lids of the deceased and opened them. "Oh my god." It really startled me. "What's the matter? I don't dare to look at it." Chen Shiyu may have noticed the expressions on me and Dabao, hugging the notebook, standing aside and not daring to approach. "Why doesn't she have white eyes?" Dabao said. "Ah?" Lin Tao's face turned pale. I mustered up the courage to use two hemostats to pinch the upper and lower eyelids of the deceased again, and said to Lin Tao, "Take a picture." Lin Tao hesitated for a moment, but still unwilling to show timidity in front of Chen Shiyu, he picked up the camera and walked over. "My god, there are really no white eyeballs, the whole eyeballs are black!" Lin Tao snapped the shot with a click, and fled away like the wind in fright. This scene that only appears in horror movies actually appeared in front of us.After the deceased's eyelids were opened, the entire eye sac was black, and the white conjunctiva could not be seen. "This corpse is still fresh." Dabao raised his forearm and wiped the cold sweat from his forehead, and said, "How could this be?" All kinds of cold knowledge about forensic science were tumbling violently in my mind, and I said: "Corruption will not happen like this... Well, I know, this is a black spot on the sclera." "This term seems familiar." The sudden shock seemed to put Dabao into a working state. I said: "If I remember correctly, this kind of sclera black spot is very rare. The main principle is: after the death of the human body, because the eyelids are not closed and the environment is dry, the water in the eye sclera loses rapidly, and the loss of water The sclera will become very thin, and the pigment of the choroid under the sclera will appear. In fact, there is no white eyeball, but the pigment under the white eyeball is exposed, and it looks like the entire eyeball is black." "This can be deduced in reverse, the dead just died with peace in their eyes." Dabao said. "The eyes are opened at the time of death, and the eyelids may also be opened after death. I heard from Lao Qin that it doesn't mean anything." Lin Tao said, "However, as you said just now, the formation of scleral black spots is Because the environment is dry. But this is a corpse in the water! How can the environment be called dry in the water?" "Good question!" I said, "I've been thinking about this! Let's look at the plaques first." Together with Dabao, I turned the corpse over and observed the spots on the corpse that were mainly concentrated below the waist. "I heard you said that the spots on the corpse in the water don't mean anything." Chen Shiyu said, "Isn't this corpse the corpse in the water?" "The main reason for the light corpse spots in the water is that the red blood cells cannot be deposited in a fixed position because the corpses are constantly rolling in the running water, so the corpse spots are not clear." I said, "But Yuanyang Lake is a small man-made lake. The weather is fine, there is almost no wind, and the speed of the water flow is negligible. Then, the corpses in the Yuanyang Lake are actually the same as the corpses on the flat ground, and the corpse spots cannot be considered with the thinking of corpses in the water. Moreover, the dead should be suffocated dead, so the plaques will be much heavier than those of other causes of death, which can explain the problem even more.” "Then what does this corpse spot indicate?" Chen Shiyu said. I pondered for a while and said: "The corpse spots of the deceased were concentrated on the lower body, which can be explained. Because the limbs of the human body are solid, while the torso is a cavity, so the torso must be more buoyant than the limbs. A corpse lying flat in the water , the torso can be suspended, but the limbs generally hang down. The lower limbs are lower than the torso, so the plaque will mainly be deposited on the lower limbs." "It seems pointless to study this, right?" Lin Tao said. Chief Hu smiled slightly at the side, and said: "I understand what Lao Qin meant. You see, the two thighs of the deceased are all dark purple. It stands to reason that although the corpse spots are mainly deposited on the lower limbs, as a separate The position of the lower limbs is also said to be high or low. Dabao, when you saw the corpse, were you lying on your back or prone?" "On the back, I can confirm this." Dabao said. Chief Hu said: "Since it is on the back, the accumulation of corpse plaques should be mainly concentrated on the back of the thighs. But the thighs of this corpse are all corpse plaques." "And," I continued, "the lower limbs are drooping, and the lowest point should be the feet. But I feel that the corpse spots on the deceased's feet and lower legs are not the heaviest. The heaviest parts are at the knees." "Then what does that mean?" Chen Shiyu asked with his head tilted. "I need to think about this too." I lowered my head and said, "Continue with the autopsy." The deceased's eyelid bleeding, bruised lips, and bruised nails of the extremities all suggested that the deceased died of mechanical asphyxiation.The shocking damage to the neck of the deceased tells us that she died of mechanical asphyxiation caused by compression of the neck. The neck of the deceased was very fair, so the trace of bruising was particularly eye-catching. "When the body was first fished out of the water, I thought it was a strangle mark on the neck." Dabao said, "Now it looks like a strangle mark." I nodded and said, "The subcutaneous hemorrhage on the neck of the deceased showed a strong regularity. You see, the injury is around the neck, and the upper edge is in contact with the chin, so it cannot be seen clearly, but the lower edge is very neat. The upper, There is a few centimeters of width between the lower edges, indicating that it was not barehanded, but strangled with a ribbon." "That's hard to say." Chen Shiyu said, "Could it be suicide by hanging?" "Hang yourself, and then fall into the lake?" A young investigator in charge of contact interrupted suddenly. I shook my head and said: "The nature of death and the state of the corpse cannot be linked. If this woman is a man's mistress, because the forced marriage fails, she hangs herself. The man is afraid of taking responsibility and abandons the body. Isn't it completely possible? ?” "Oh, yes," said the investigator. "However, this case is not a suicide, but a homicide." I said. "I see." Chen Shiyu said, "This is the reason why you differentiate between strangulation and hanging." I nodded with satisfaction.Chen Shiyu has been supplementing forensic science textbooks recently, and has some understanding of the reasoning and judgment of forensic medicine.Especially after experiencing the murder case in the col, she had some intuitive understanding of the phenomenon of dead bodies who died of neck force suffocation. Forensic doctors distinguish between strangulation and hanging mainly by looking at the shape of the cable ditch.Hanging uses its own gravity to act on the neck, so the cable groove in the neck is naturally heavy and light, and there is a lift; while strangulation uses external mechanical force to act on the neck, and the neck is almost round , so the force received is relatively uniform, and the cable ditch will be relatively uniform, and most of the strangled cable ditch intersect.Hanging is more common in suicide, but strangulation is more common in homicide. "The rope groove on the neck of the deceased is very wide, and the peeling of the skin is not obvious. It shows that the rope of the murder weapon is a very soft and wide object." I said, "Why didn't the murderer kill with a thinner rope that is easier to strangle? " "Not prepared? Temporary idea?" Lin Tao said. I nodded and said, "That's the only way to explain it." For female corpses, forensic doctors will routinely take swabs from the nipples, mouth, anus, and vagina.We also performed a pre-spot test on vaginal swabs from deceased persons. The results surprised us. "Weak positive?" Dabao said, "There are sperm spots! This will be the most powerful evidence!" "It's strange, after being soaked in water for two days, how could it be possible to detect semen spots?" Chen Shiyu said, "Also, can DNA be detected for weakly positive semen spots?" I smiled and said: "I have to correct your thinking. Many people, including many leaders, always think that some cases will definitely extract DNA, and some cases will definitely not extract DNA. In fact, this way of thinking is Wrong. Whether or not DNA can be extracted is a matter of probability, not inevitability. For example, in a rape case, the corpse is fresh, and the environment is dry, so the probability of DNA extraction is very high, but it is not inevitable. , will be affected by many factors, such as the "Yuntai case" before you came here. Another example, a case of strangulation, the ropes left at the scene, many people think that there is no evidence, but there is a small probability that it can The murderer's exfoliated DNA was found on the rope. Therefore, the extraction of biological samples must be carried out meticulously, and even if it is impossible, we must try it, and we may find it if we are not sure. This corpse in the water, if not for us Try it, and you won’t find that the pre-sperm spot test turned out to be positive! This is a small probability event.” "Then, the cracking of many cases is a coincidence, right?" Chen Shiyu tilted his head again, with a naive expression on his face. I nodded and said, "I once said that there are coincidences in the cracking of many cases, but without a serious and rigorous attitude, there will be no coincidences." "It seems that the underwear will also be sent to the DNA testing room." Chief Hu said. I nodded and said, "Success or failure depends on one action." "Although there are semen spots, the signs of sexual assault are not obvious." Dabao said, "The deceased was dressed so neatly, and there was no damage to the perineum." "Clean clothing and no damage to the perineum does not mean that it is not a sexual assault." I said, "It can be that the victim dressed himself after the sexual assault and was killed, or it could be that the murderer finished killing and then dressed the victim. Damage can indicate that it may be rape, but no damage does not mean that the deceased is voluntary. Anyway, if there are clues, we must continue to investigate." Dabao nodded, and the autopsy work continued. Although the murder weapon is an inconvenient killing tool, the murderer is still very powerful. We dissected the neck skin of the deceased and found that there was extensive bleeding in the neck muscles of the deceased, which suggested that the murderer was ruthless and that the process from suffocation to death was very long due to unfavorable tools. "The deceased died after going through a very painful process." I said regretfully. "The hyoid bone, thyroid cartilage, and cricoid cartilage of the deceased were all fractured." Dabao used hemostatic forceps to reset the broken and deformed throat of the deceased. I shook my head, cut open the deceased's trachea and esophagus with scissors, and said, "There is no foreign object in the water, no drowning, and no coughing bubbles in the deceased's trachea and esophagus. It means that the deceased was thrown out after death. After she entered the water, There is no breathing activity." "There was no drowning in the deceased's stomach." Dabao opened the deceased's stomach and said, "The form of chyme has been incomplete, and the food has entered the duodenum and small intestine. It is estimated that the deceased died three to four hours after the last meal. " "The deceased's extremities and joints had sporadic restraint injuries and resistance injuries." I pointed to some flakes of bleeding under the skin of the deceased's joints, and said, "Although there was resistance, the resistance was not obvious, indicating that the murderer and the deceased were still very different in physical strength. big." "After the autopsy, what do you think is the nature of the case?" Chief Hu asked. I shook my head and said, "It's hard to say. The murderer doesn't seem to have premeditated, it doesn't seem like premeditated murder out of hatred. However, there are signs of sexual assault and property infringement, so it is impossible to judge whether it is property infringement, sexual assault or Passion, maybe there are factors." "Since the murderer dumped the body, he might be an acquaintance, so let's check the source of the body first," Lin Tao said. I nodded and said, "Just tell the task force about the situation. Today is the big weekend, let's go back and have a rest, and you, Dabao, go back and think about how to coax your wife. See you at the special case meeting at eight o'clock in the evening." "It's an ex-girlfriend." Chen Shiyu said. In order not to miss the appointment, I decided to let everyone rest for an afternoon.When I found the bell in the baby store, I found it was Mrs. Bao who was with her. Sister-in-law Bao has already changed her wedding dress and makeup, and she is holding Bell's arm, looking around. In order to avoid embarrassment, I didn't say a word about Dabao, and followed them silently, helping to carry the handbag. After walking for more than an hour, we came to a baby clothing store, and several child models at the entrance of the store caught my attention.These are four plastic models, all with the same shape.The model raised her hands flat, making a jumping and hanging pose.Because the model's lower legs are bent backwards, the model is supported on the ground by a steel pole. I looked around the model a few times, squatted beside the model and thought for a long time, feeling sparks flickering in my head. I stood up excitedly, handed the handbag to the bell, and said to the bell: "You guys take a taxi home in a while, I have to go first." "Why are you men like this?!" Sao Bao said angrily. 铃铛扶了扶腰，摸了摸宝嫂的后背，安慰似的说：“没事的，工作嘛，我们得支持。” 我感激地对铃铛笑了笑，转身跑走。 在接到我的电话后，大宝和林涛先行赶到了专案组。从林涛打来的电话中，我知道专案会议提前召开了。既然是提前召开，就应该是有特殊原因，我怀着忐忑的心情，一路飙车赶到了市局。 当我推开专案组的大门，就知道案件果真已经有了突破性的进展。而这个进展，又是刑侦撒手锏——DNA检验取得的突破。 “死者的阴道擦拭物和内裤，我们都检出了基因型。”从市局被遴选到省厅后不久就担任省厅DNA实验室主任的郑宏，也参加了此案的DNA检验和比对工作，她说，“经过两者的比对，我们确定是混合型DNA。” 所谓的混合型DNA，说明留下的精斑不是一个人的。 “两个人？轮奸吗？”我说，“给人感觉真的有点儿像是性侵案件了。” 郑姐接着说：“然后，我们把这两个人的DNA放在前科人员DNA库里进行了比对，结果很意外，居然比出了一个前科人员。” DNA检验果真是撒手锏，比我们现场法医推断来、推断去要直接多了，这就已经直接锁定了犯罪嫌疑人。 “根据DNA实验室的比对结果，我们对这个前科人员进行了身份确定。”侦查员接过郑姐的话茬儿，说，“这个人叫作房三水，曾经就读于龙番大学美术系，是艺术特招生。在大一的时候，就因为和人打架，把对方打成轻伤，没钱赔偿，坐了三年牢，学籍也因此被注销。他的父亲早逝，母亲在家种地，在他坐牢后，就很少联系他。根据系统记载，这个人至少有十次被治安拘留的记录，案由都是斗殴。” “就是一个地痞流氓啊。”我笑了笑，说，“嫌疑上升了。他平时就是混事儿吗？” “不，开了家文身店，做文身师。”侦查员说。 我顿时想到了死者腰部的3D蝴蝶文身，说：“熟人作案吗？嫌疑进一步上升。” “那下一步怎么办？”林涛说。 “我们已经派人去抓了，估计现在已经抓到了。”侦查员说。 “那我们就在这里等结果吧。”我说。 “对了，你们没接通知就提前到专案组来，是有什么发现吗？”陈张宏副局长对我说。 我摇摇头，说：“既然有了突破性进展，我的那个可能性分析也没多大用处了。” 我的话音刚落，楼道里就传来一些嘈杂的声音，我起身探头去看，见两个民警扭着一个男子走进了专案组隔壁的审讯室。 “打开监控摄像头，我们就在这里看审讯监控。”陈局长说。 “抓我干吗？”被抓的男子一身文身，想必就是房三水。 “你心里清楚。”侦查员上来探了探虚实。 “我不清楚！我好久没打过架了，我跟女朋友保证过的。” “你女朋友叫什么名字？”侦查员问。 “倪妙妙。”房三水挣扎了一下，“手铐能拿掉吗？我得靠这双手吃饭！” “这个，你认识吗？”侦查员开门见山，举起了死者的腰部文身和死者的面部照片。 房三水突然停止了挣扎，怔怔地盯着照片。良久，他突然像疯了一样从审讯椅上跳了起来，大叫道：“她怎么了？你们对妙妙怎么了！” 从房三水的泪水喷涌而出时，我的心里就开始怀疑之前的观点，那种表情实在不像是装出来的。于是，我的脑子又开始飞速转了起来，为下一步的分析整理思路。 侦查员对房三水做了许久的工作，房三水的情绪才稍微稳定一些。 “6日晚上大约六点钟，妙妙来找我，我们刚在一起不到一年，但已经决定结婚了。”房三水说，“我们一起吃的饭。” “吃的什么？” “我做了几个菜，西红柿炒蛋、排骨，好像还有木耳炒肉丝。”房三水垂着脑袋，视频影像看不清他的表情。 我翻了翻尸检笔录，死者的胃内容物和他所述的一致。 “吃完饭，我们那个了。”房三水以前经常进出局子，他很快就知道公安局为什么会找到他，“然后我要打游戏，她说要回家，我就让她自己打车回家了。” "What time was it then?" "Eight o'clock." “你怎么记得那么清楚？” “因为我们八点钟有游戏的公会活动，公会活动刚开始，她说明早要赶火车，要回家早点儿休息，我就说你打车走吧。” 网监支队的一名侦查员转身离开会议室。 “倪妙妙是做什么的？以前有什么仇人吗？”侦查员问。 “没有，她很内向的，也很少和别人有交集。”房三水说，“更谈不上什么仇人了。她是兴化IT的技术部主管。” “嚯，一个外企高管爱上一个社会混混，多么悲壮的爱情故事。”大宝显然不太相信这个男人，阴阳怪气地说。 “再悲壮，能有你悲壮吗？”陈诗羽说。 “我们是玩魔兽世界认识的，感情一直很好。”房三水说。 “她消失两三天，你都不找？”侦查员问。 房三水说：“她不让我随便给她打电话的，她经常加班，她说她有空就会给我打电话的。而且她从我家离开的时候，说是要出差一星期的。” “那你这两天在做什么？” “白天照顾店里生意，晚上玩魔兽世界。”房三水说。 “你们不是游戏里认识的吗？游戏里看不到她你也不奇怪？” “她好久都没玩了。” “倪妙妙的公司也没有报失踪？”我问。 侦查员说：“刚刚了解的情况，倪妙妙这次是去云泰的分公司突击检查技术指标。总公司以为她走了，分公司不知道她要来。所以，一直没有人报失踪。” “房三水租住房的网络活动我们调查了，他6月6日晚上七点半上线，一直玩网络游戏玩到十二点。”网监部门的侦查员走回会议室，说。 “他没有作案时间。”我说，“根据房三水对他们晚餐的供述，死者应该是当天晚上八点到十点之间死亡的。” “没想到，这个突破性进展，不是个进展。”胡科长说。 我摇摇头，说：“不，依旧是个进展，至少我们现在搞清楚死者的身份了。” “既然是抛尸，有可能是熟人作案吗？”大宝问。 “死者的家，住在哪里？”我转头问主办侦查员。 侦查员用投影仪放出一张龙番市地图，用激光笔指着说：“这个位置是房三水的家，倪妙妙的住处在新区。” “也就是说，如果死者打车回家，应该是走这条路。”陈局长用激光笔指着一条大路，慢慢南移，红点最终停留在“龙番城市公园”几个字上。 “如果死者是在车上遇害的，凶手有可能沿途找个地方丢弃。”我说，“那就不是熟人作案了。因为凶手的行为是毁证行为，而不是藏匿行为。” “房三水现在没有嫌疑了吗？”林涛说。 我说：“现在嫌疑很小了。第一，作案时间排除了。如果房三水是有准备作案，在作案的时候利用其他手段造成自己不在场证据的话，那么他杀人就应该选用一个顺手的工具。第二，从房三水被抓后的表现看，如果他真的是在演戏，那么也太逼真了，毫无破绽可寻。第三，如果是房三水作案，那么他抛尸的目的就是延长发案时间。而他被抓后，直接主动提出了死者的存在，这不符合一个存心隐瞒的人的心态。第四……” “你们别忘了，混合DNA的意思是说，除了房三水，还有个人和死者发生过关系。”郑宏打断了我的话，说。 我点点头，说：“从尸检上看，死者应该遭受过约束，但是会阴部没有损伤，不排除是杀人后强奸。这个另外出现的DNA，嫌疑现在是最大的。城市公园这个地方，附近有没有什么特别隐蔽的所在？” “这需要我们去考察一下。”侦查员说，“毕竟是新区，人也不是特别多，但有没有适合作案的地方，还需要实地去看。” “那就去看啊。”陈局长说。 “可是，法医能确定死者是在什么环境里，怎么死亡的吗？”侦查员仍有困惑。 我说：“这就是我刚才没有说完的第四点，可以证明凶手不是房三水的依据。房三水没有车，而死者是在车里被人勒死的。” “有依据吗？”侦查员问。 我点点头，说：“这事儿得从死者的眼睛说起。死者的眼睛出现了巩膜黑斑，是一种在干燥环境下才会出现的情况，我一直都搞不清楚为什么。尸体是在水里的，而且现在的空气湿度也不小，为什么会出现黑斑呢？后来看了尸斑我就明白了。” “为什么？”大宝急着问。 “死者的尸斑和她平躺在水中的姿势不符。”我说，“按照她现在的姿势，尸斑应该集中在她的大腿后侧以及小腿、脚。但是我们看到的尸斑，是在大腿前面后面都有，最重的地方是膝盖，小腿和脚反而较轻。结合巩膜黑斑，可以肯定，死者是在死亡后，保持一个特别的姿势至少十个小时，然后被抛尸水中的。简单地说，死者是在死亡很长时间后，被人移动尸体、改变尸体姿势的。” “为什么至少十个小时？”侦查员问。 我说：“机体死亡后十到十二个小时之内会形成固定的尸斑，这个时候翻动尸体，会在新的低下部位形成尸斑，而老的低下部位尸斑不会消失，依然存在。死者的大腿前、后都有尸斑，说明死者先处于一个类似俯卧位，大腿前面较低，形成大腿前面的尸斑，在保持这个姿势十到二十四个小时之间的某个时间点，又被更改为仰卧——也就是我们发现尸体时候的姿势，所以才会在仰卧时候较低的大腿后侧形成尸斑。” “水中尸体不会移动吗？” “不会。”我说，“我查了气象资料，那几天天气很好，现场的水也是不流动的，尸体不会自己翻转。” “你接着说。”陈局长说，“我还是不知道这个移尸的依据是怎么推理出死者是在车里死亡的。” 我笑了笑，说：“开始我就发现死者死后被人移尸，但是具体有什么作用，我也没有想清楚。甚至连死者死亡后到底保持一个什么姿势，才能让尸斑集中在大腿前侧和膝盖，我都没有想明白。今天逛街的时候，我看见一个模特，我就突然想明白了。” “什么样的？”陈局长问。 我把手机中的照片拷贝到电脑里，投影在幕布上，说：“死者应该和模特的姿势是一致的，上身以及大腿应该是基本直立的，朝前方倾斜，所以尸斑在大腿前侧；双臂应该有东西架住，所以双臂也没有尸斑。死者的膝盖着地，所以尸斑最重；小腿和脚向后翘起，所以没有尸斑。也就是说，尸体是以膝盖为底点，呈现一个'V'字型的姿势直立在那里。” “说得好恐怖。”林涛嘀咕了一句。 我接着说：“被害人死亡后，肌肉会松弛，肯定不会自己保持这个姿势。那么肯定是周围的物体把她挤压成这样的姿势。那么，什么地方会有这样的物体，可以把一个尸体摆成V字形直立，双臂架起呢？而且，关键的疑点是，死者全身都没有擦伤，生前伤和死后伤都没有，那么说明把尸体架起来的物体，表面是光滑、柔韧的，不可能是墙壁、床沿之类的东西。那么，这是个什么东西呢？” “什么？”几个人异口同声地问道。 我说：“开始我也想不出来，后来我结合死者的巩膜黑斑和死者的颈部损伤，终于想明白了，只有在车里！第一，这种天，如果凶手也在车里陪着尸体待十几个小时，肯定要开空调，那么车内空气就会非常干燥，符合巩膜黑斑的形成环境。第二，凶手的杀人凶器是一个几厘米宽的绳索，显然不顺手，是临时起意、就地取材的。车里就有这样的绳索。” “安全带！”陈诗羽说。 我微笑着点点头，说：“第三，如果被害人死亡后，尸体在后排。上半身紧贴着前排座椅，双手搭在前排座椅的头枕两侧，膝盖着地，身体前倾，小腿和脚反翘架在后排座椅上，完全可以形成我说的那种形态的尸斑！” “座椅都是软的！”大宝说。 我接着说：“依据以上的推论，我断定死者是在一辆汽车中被害的，案件性质很有可能是临时起意的性侵。至于死者的钱包手机丢失，肯定是凶手顺手牵羊而已。结合房三水的供述，死者原本是要打车回家的，死者既然是死在车里，那么，很有可能是出租车司机临时起意，谋性杀人！” “这太好办了，调查全市出租车的GPS信息，迅速进行研判。”陈局长说。 我说：“我觉得一辆出租车不可能载着一具尸体到处跑，而且尸体的抛尸地点也就在死者回家的路线上。所以我分析，死者在车里的这十来个小时，车应该是停着的，而且应该是停在一个隐蔽的地方。” 满怀着破案的信心，看着铃铛买回来的婴儿衣物，我睡得很香，一觉醒来已经八点多了。我慌慌张张地洗漱完毕，开车赶往市局专案组。 林涛、大宝和我几乎是同时到达专案组的。林涛和我一样满面红光，而大宝则带着一对黑眼圈，一脸灰暗。 “一个好消息，一个坏消息，你们先听哪个？”这句有些戏谑的话，从满面严肃的陈局长嘴里说出，显得很不相宜。 “先听坏消息吧。”我说。 陈局长说：“经过研判，全市所有的出租车，都被排除了。” “什么？”我有些惊讶，这个坏消息远远坏过了我的想象，“那……那下一步岂不是没得查了？我的推断有错误吗？那好消息呢？” “好消息是我们在房三水家去鸳鸯湖的路上，找到了一处比较符合推断的隐蔽地点。”陈局长说，“这是一处绿化带，一般不会有车开上去。但是我们在这个地方发现了汽车的轮胎印痕。” “也就是说，有车辆反常开上去了？会不会和本案无关？”我说。 “不管有没有关系，都要当线索去查。”陈局长说，“而且，从这处轮胎的新鲜程度判断，车辆轧出轮胎痕之后，已经过了三四天；这个地点，也是这条路线上独一无二的隐蔽地点，绝对不会有人去注意。” “那通过一个轮胎印痕，怎么去开展下一步工作？”我问。 陈局长笑了笑，说：“我们找了个专家，确定了这个品牌的轮胎，只用于三个品牌的车辆。于是，我们就在这条路上所有的监控里，寻找这三个品牌的车辆。” “对呀！”我拍了下桌子，说，“时间很紧张。死者是晚上八点从房三水家出来的，十点之前就遇害。从房三水家出来，如果立即乘车，开到这里也就八点半的样子，那么只要找八点半到十点之间，路过这里的这三个品牌的车子就可以了。” “是的。经过一夜的调查，监控显示只有七辆符合条件的车辆经过。”陈局长说，“这七个车主的信息，我们也就很快掌握了。” “难道要一个个抓来抽血检查DNA吗？”大宝问。 陈局长摇摇头，说：“你们有没有想过，死者倪妙妙是一个性格比较内向的女孩，平时也很谨慎，那么她为什么会上别人的车呢？” “熟人？”我问。 陈局长摇摇头，说：“七个人和倪妙妙都没有关系，这一点，调查可以确定。” “那你描述的这种性格的女孩，怎么会随便上一个陌生人的车？”我反问道。 陈局长微笑着看着我们，提示性地说：“别忘了，倪妙妙的目的，是打车回家，而全市所有的出租车都被排除了。” “黑车！”我和林涛同时叫道。 “对，黑车。”大宝的反应慢了半拍。 陈局长哈哈一笑，点头说：“据了解，这七辆车中，就有一辆是跑黑车的。” “晚上八点，在外聚餐的市民都散场了。”我说，“这个时间点，省城的出租车是很难打到的，所以倪妙妙上了一辆黑车！” 黑车司机牛强被抓捕归案后，还没等民警采血，就交代了自己的罪行。 牛强因为赌博被处罚后，就被原来所在的工厂辞退了。除了驾驶没有别的本事的他，买不起被炒得昂贵的出租车营运证，只有开起了黑车。 6月6日晚，牛强和往常一样，驾驶着他的黑车，来到了房三水家附近。远远的，他看到一个年轻貌美的女子在伸手打车。于是他驾车靠近，拉起了生意。 省城的黑车很多，运管处因为种种原因，无法深入治理。所以在上下班高峰以及很晚的时候，市民们都会选择乘坐黑车。 倪妙妙自然也不例外。 忙碌了一天，又和房三水云雨了许久，刚刚洗完澡的倪妙妙困意上涌，巴不得马上回到自己家中柔软的床上。所以她连价格也没问，就上了牛强驾驶的黑车。 倪妙妙的家离房三水的家有十几公里的路程，而且市区的路有些堵，倪妙妙很快靠在副驾驶的位置上就睡着了。 而一旁的牛强，被倪妙妙出水芙蓉般的睡姿和她诱人的体香诱惑得天旋地转，顿时心生歹意。 车子开出市区后，驶入大路，不一会儿就来到了那一片隐蔽的绿化带。牛强看看后视镜，发现周围竟然没有一辆车，索性把车开进了绿化带。 车辆轧上绿化带时的颠簸，依旧没有让沉睡中的倪妙妙醒来。牛强停好车后，悄悄放倒了倪妙妙的座位，开始抚摸倪妙妙的全身。这时，倪妙妙骤然醒来，开始剧烈反抗。 汽车的空间毕竟还是狭小的，在倪妙妙的反抗下，想要顺利得手，也不是一件容易的事情，牛强甚至被倪妙妙抓破了脸颊。为了不让倪妙妙高声呼喊，牛强顺手拉过倪妙妙身旁的安全带，绕在了倪妙妙的颈部，并且用力去勒。这一招果然让倪妙妙的反抗减轻了不少，牛强开始一边勒颈，一边伸手去脱倪妙妙的内裤。倪妙妙的反抗越来越无力，在牛强得逞后，才发现倪妙妙已经断气。 牛强把倪妙妙的内裤重新穿好，把尸体放进后排，让尸体呈现直立的体态。据他说，他要思考怎么处理尸体，而在这思考的期间，万一有路人经过，可能会发现倪妙妙的异常。让倪妙妙直立在后座，经过的路人也不会起疑。 后来，思考中的牛强居然在车里睡着了。这一睡就是一夜，直到第二天早晨将近七点，才陡然醒来。 原来梦里的杀人，不只是梦，现实中的他，也确实杀了个人。