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Parasitic evil thoughts ¡¤ 2

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    You can search for "Nine Drops of Water¡¤Corpse Investigation Department Series (7 volumes in total)" on Baidu to find the latest chapters!

    Early in the morning, Pang Lei suddenly opened the door and said: "Take care of the guys and come out of the scene."

    ¡°What case?¡± I asked.

    Fat Lei said listlessly: "Our 'big customer' is a headless corpse."

    "Big customer" is Fat Lei's nickname.  Our department is nicknamed the "Corpse Investigation Department" by our colleagues. We have to go to the scene to screen all cases related to corpses.  Yunxi City is adjacent to the Sishui River in the north, and the watershed stretches for hundreds of kilometers. Every year, no less than a hundred floating corpses are found on the river. The "big customer" that Pang Lei calls is the floating police station in charge of the entire Sishui River.

    The caller was Lao Zhao, the "body hunter" from the police station.  Whenever a corpse is found floating on the river, he is basically the first to call out the police to identify it.  Compared with Brother Ming, who specializes in forensic medicine, Lao Zhao has his own unique perspective on floating corpses.  If even Lao Zhao feels that there is something suspicious about the body, it is basically not far from a murder case.

    When we arrived, the police station had already put the body into a blue body bag.

    "Old Zhao, what's going on with the body?" Ming Ge and Lao Zhao are close partners, and they went straight to the point without any politeness.

    "Xiao Leng, you're here. I didn't dare to touch the body. I picked it up and put it in a bag."

    When I heard Lao Zhao say the words "I didn't dare to move", I felt that things had become unusual.

    Brother Ming: "What was the situation before you fished it out?"

    Old Zhao: "The headless male body is naked from the waist up and wearing a pair of boxer briefs. There are puncture wounds on the chest and abdomen with sharp objects. The wounds are fatal. It is definitely a homicide and dumping the body. I have also notified the criminal police team."

    Lao Zhao has also been dealing with corpses all year round. Some of his analyzes are no less than that of Brother Ming. He said it was a murder case, which is basically the same.

    Brother Ming opened the body bag and took a look, then quickly zipped it up: "Homicide, take the body back to the autopsy room." The current temperature is around 30 degrees Celsius, and the body will decompose quickly once it leaves the water, so it is determined to be a homicide.  , must be transferred as soon as possible.

    The investigation procedures for floating corpse murder cases are different from ordinary murder cases.  Since the corpse is constantly floating in the river, this type of murder usually does not require investigation of the surrounding scene. All clues must be found from the corpse.

    Before dissecting a floating corpse, our first step is to observe whether corpse wax appears.  Corpse wax is a special corpse phenomenon. Corpses that stay in water for a long time can easily form corpse wax.  The process of corpse wax formation can be roughly divided into four stages: the first stage, the subcutaneous fat of the corpse is decomposed to form fatty acids and glycerol; the second stage, the protein in the corpse is decomposed and ammonia is released; the third stage, the fatty acids and ammonia are combined,  Formation of fatty acid ammonia; in the fourth stage, the fatty acid ammonia free near the corpse reacts with calcium, magnesium and other elements in the water, eventually forming a layer of gray-white waxy substance on the surface of the corpse. This layer is called corpse wax.  After the corpse wax is formed, it forms a protective layer on the corpse.  This kind of protection is extremely unfavorable for forensic doctors to determine the time of death of the deceased, but because it can preserve the injuries on the body for a long time, it is still very helpful in analyzing the individual characteristics of the deceased.

    The formation of corpse wax takes a long time. It takes about 1 year for an adult corpse, and at least 6 to 7 months for an infant.  Once corpse wax forms on a corpse, it basically means that the case has already passed, and you must be prepared for a protracted war.  Fortunately, the deceased in this case was still in the early stages of giant conception, and it was estimated that the time of death would not exceed one month.

    In order to prevent the body from accelerating decay, Ming Ge lowered the indoor temperature to below 10 degrees Celsius (general anatomy rooms are equipped with independent cooling equipment). The difference between indoor and outdoor is 20 degrees Celsius, which is so refreshing as you can imagine.

    In order to find out the source of the corpse, the first step in the autopsy is to find relevant information from the corpse that can identify the identity of the deceased.  The most intuitive ones are gender, height, age, fatness, hair length, birthmarks, surgical scars, etc. This information is an important basis for screening missing persons in the future.

    ¡°Compared with other floating corpse cases, this case also has its particularity¡ªthe head of the corpse is missing, which means that information that is originally very intuitive needs to be judged using relatively complex methods.

    For example, for height, for ordinary people, we only need to pull up a measuring tape and the data will be clear at a glance; but in this case, we have to measure the forearms, calves, soles of feet and other values, and then substitute them into the formula for calculation. There will be some errors in the results obtained in such a time-consuming manner.  Another example is age. In this case, it can only be judged by the degree of development of human bones.

    The autopsy examination lasted for about an hour, during which Ye Qian and Team Xu rushed to the autopsy room without stopping.

    After calculations, Ming Ge gave a preliminary conclusion: "The deceased was a male, about 25 years old, 1.75 meters tall, of medium build. It was estimated that his weight before death was about 130 kilograms. There were 4 sharp instrument penetrating wounds near the left chest, 2 of which were  The knife pierced the heart, the cause of death.??The blood flows into the pericardium, preventing the heart from relaxing, leading to cardiac arrest.  The modus operandi is to kill and then dump the body.  "

    After Lao Xian finished recording, Brother Ming shifted his attention to the broken neck of the deceased: "The cervical vertebrae were completely separated, with no traces of cutting, and the peripheral muscle tissue was torn. The deceased's head had been subject to huge traction."

    ¡°Our department has also investigated many corpse dismemberment cases, and the method of dismembering corpses and decapitating them is also very common.  If the suspect had used a knife or ax to chop, it would have left sharp marks on the cervical vertebrae, rather than a complete separation as Ming Ge said.  To put it simply, overall separation means that there is no damage between the bone surfaces of the cervical vertebrae, and only the connective tissue connecting the two bone surfaces is broken.  The ancient torture "car splitting" can cause the whole body to separate.

    "What perverted method did the suspect use to pull off the deceased's entire head?" I really can't figure it out.

    Brother Ming did not answer immediately, but opened the deceased's chest with a scalpel: "It seems that my inference is correct. All internal organs are bleeding, which means that when the deceased fell into the water, the chest was compressed, and usually only a quick  This situation would only occur if the body sank in a deeper water area. Based on the analysis of internal bleeding caused by the pressure difference, the water where the body sank is at least 50 meters deep."

    After saying that, Brother Ming turned the deceased over. The linear scars on the back of the body were very eye-catching.  Ming Ge said: "These are scratches caused by the rapid movement of the body. When the suspect dumped the body, he should have used a rope, one end tied to the neck of the deceased, and the other end tied with a heavy object. The heavy object was pulled along when it fell into the water.  The body moved rapidly, leaving numerous scratches on the back of the body.

    "When the corpse's head fell into the water, it received a huge traction force, which caused the entire cervical vertebrae to separate. At this time, the corpse's decay has not yet begun, and the head and body of the deceased may still be connected with skin and flesh. As the corpse's decay gradually intensifies, the skin and flesh  It gradually decomposes under the action of microorganisms, and when the decomposition reaches a certain level, the undercurrent of the river bottom will eventually tear the entire head from the corpse."

    Ming Ge continued: "During this process, we need to analyze several issues. The bottom of the Sishui River has an inverted triangle structure, and only the center is the deepest. The deceased's internal organs suffered huge pressure during the sinking process. From this, it can be concluded that the suspect  The location where the human body was buried must be near the center of the river.

    ¡°Then we will analyze how the suspect arrived at the center of the river.

    "According to normal people's understanding, he was either driving a boat or taking advantage of geographical advantages.

    "Let's first look at the first situation, where the body was dumped by boat. There were large scratches on the back of the body, indicating that the body had been rapidly displaced during the dumping process. This situation is very common in a crowded small boat.  It is impossible to achieve. Only large ships with decks are eligible. But there is another point worth noting. The scratches on the deceased's back are large and the scar lines are messy, indicating that the contact surface of the deceased's back was uneven when entering the water.  First of all, a smooth and flat deck does not meet the conditions. Then, the suspect dumped the body in a boat can be ruled out.

    "Then let's look at the second situation, taking advantage of the geographical advantage to dump the corpse. Both sides of the Sishui River are plains. If you want to walk to the center, there is only one possibility - walking on the bridge. Nowadays, the new bridge has guardrails, and the corpse cannot be moved. If there is no  Conditions for dumping the body, so I speculate that the suspect's dumping place should be on a stone bridge without guardrails." Brother Ming said, looking up at Ye Qian who was about to write, "Don't rush to record it, I often  When you go fishing, there are many abandoned ancient stone bridges in the upper reaches of the Sishui River. Knowing this, it is still very difficult to investigate. Let¡¯s wait until the autopsy is completed and see if there are any new discoveries.¡±

    "Okay Director Leng." Ye Qian put down her pen and stood behind me consciously.  (Remember the website address: www.hlnovel.com
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