Two corpses at the same fire scene had different death postures.
What does it mean?
Although Shen Yan doesn't know much about excavation, her research on the morphology of corpses is more in-depth than Lu Chuan's.
“It is generally not easy to distinguish between arson and murder and burning the body after death.”
“The most important thing is to conduct an anatomy and observe the color and color of the internal organs. The internal structure can then be determined. ”
"But the corpse next to the bed..."
Shen Yan traced the entire outline of the corpse with her hands, and then said: "Although the limbs of the corpse have been carbonized and the edges are burnt, the crawling posture Obviously, this shows that the other party should have fled at that time."
"However, whether it was due to injuries or smoke from the fire, an autopsy still needs to be performed."
Lu Chuan nodded, Shen Yan was right.
Although the shapes of the two corpses are different, it does not directly prove that the fire broke out after they were injured.
After all, it was late at night, and after the fire burned, the people lying on the bed might have fainted from the smoke.
That’s why there is no corpse reaction.
"The body is burnt. It's better to transport it back for autopsy first. I'll draw the line first, and then investigate other conditions in the house."
The line drawing Lu Chuan said was drawn with chalk. The outline of the corpse, or rather, should be called the trace fixation line.
With this tool, even if the body is not at the scene, the current investigation can use traces to fix the line and analyze the position and dynamics of the body at that time.
"Okay, then you are busy here, I will go back to do the autopsy, and I will tell you as soon as I have any news."
The trace fixation line was quickly finished, and the two of them did not ask anyone else to come over to help. After all, The body was already carbonized and weighed little.
Lu Chuan and Shen Yan are completely capable of moving.
“Be careful, the carbonized limbs will be very brittle and easy to break.”
Lu Chuan nodded. The carbonized body had already adhered to the ground. The two of them were carefully removing the limbs. Start by prying it open bit by bit.
"Shen Yan, look at this."
The body lying on the ground under the bed was just moved, and the part where the abdomen was in contact with the ground was exposed.
Because the belly of the corpse was in close contact with the ground, the fire and high temperature did not cause erosion to this part.
"Is this... a blood stain?"
The dark red blood stain, from the carbonization on the edge to the still moist part in the middle, clearly evolved the shape of the blood stain under the fire , color change.
"It's blood stains. Let me report it to the captain first. Gasoline was found at the fire scene, which basically confirms that the fire was arson. Plus the blood stains..."
"The murderer probably killed someone first, and then set fire to destroy the body and eliminate traces. "
The criminal investigation detachment should have just finished its morning meeting, so everyone can come over.
The edge of the blood stain on the ground has been carbonized like the corpse, but because of the excessive bleeding, the part near the inside, protected by the corpse, has just become as mature as blood tofu.
The pool of blood in the middle is still in a moist, uncoagulated state. The blood has not completely coagulated, and some protein substances have not been denatured.
The two corpses were quickly carried out of the scene by Lu Chuan and Shen Yan. After being loaded into the car, Shen Yan returned directly to the Criminal Investigation Detachment to prepare for the autopsy.
At the scene, due to the turning of the corpse, the smell of burnt protein, with a strange meaty aroma, did not dissipate for a long time.
Liu Guodong and Lao Bai have already arrived at the scene. As for Yang Sen, he has taken leave for the past two days.
Tomorrow is June 7th, the day of the college entrance examination. Although a murder has occurred, Lao Yang is not missing here and has not called him back.
“Let’s take pictures first, and then see if there is anything that has not been burned.” “The focus is on the areas covered by collapsed beams, and the areas that have not been burned by the fire.”
Liu Guodong arranged the work, and the three people began to survey the site in detail.
At the same time, the criminal investigation detachment’s autopsy room.
"Xiao Shen, turn on the exhaust fan to the maximum air volume."
On the autopsy table was the corpse found on the ground. This time, Wang Changjiang was the surgeon, and Shen Yan took notes.
"Records of the appearance of the corpse include carbonization of the lower half of the limbs, carbonization of half of the face, and carbonization of the clothing covering the body."
Wang Changjiang dictated while breaking off the carbonized parts, while Shen Yan took notes.
After the exhaust fan was turned on, the aroma similar to barbecue in the dissection room had faded a lot.
In the autopsy of a burned corpse, the first priority of the forensic doctor is to determine the cause of death of the deceased.
Did you die before catching fire, or burned after death?
This is not easy to judge from the appearance, but once the corpse is dissected, as long as the corpse is not completely carbonized, it can be easily judged from the characteristics of the internal organs.
As long as a person is not dead, whether in a coma or conscious state, breathing must be normal.
As the fire burns, smoke will enter the mouth, nose and throat as the deceased breathes.
In this case, if the throat is dissected and high-temperature burns and smoke are found, it can be concluded that the deceased did not lose his life before the fire.
And if the deceased was killed before the fire, there would definitely be no smoke left in the throat.
The position where Wang Changjiang performed the dissection this time was also different from before.
For normal anatomy of a cadaver, most cuts will be made from both sides of the clavicle, making a Y-shaped cut.
This time, Wang Changjiang cut directly into the throat and explained to Shen Yan: "The first thing to check on a burned corpse is the throat to see if there is smoke intrusion."
Because the corpse is Lying on the ground, his throat and half of his face were still relatively intact.
Unlike another corpse lying on the bed, the face was completely carbonized and it was impossible to see what it looked like.
The throat area was also indistinguishable, and only bones connected the entire neck to the body.
Shen Yan has never dissected a burned corpse before, so this is a rare practical experience.
"The second corpse later, you will do the surgery and I will record it."
"Okay, Master."
The slit throat can be clearly seen There were burns and traces of black smoke intrusion.
"The deceased was lying in a prone position, and there were traces of smoke intrusion into the throat, indicating that the deceased did not die directly during the fire."
"Combined the blood stains you found at the scene and the blood stains on the deceased's abdomen From the wounds, it can be determined that the murderer set fire to the deceased after being stabbed.”
There were obvious stab wounds on the abdomen of the body, and the clothes were full of blood.
Wang Changjiang continued to operate: "In addition to the throat area, the organs also have different characteristics on the burned corpse."
"If the deceased was burned to death, then there will be red spots on the corpse. .”
Wang Changjiang cut open the clothes on the deceased's abdomen, wiped away the blood, and clearly saw red spots. (End of this chapter)