Chapter 22: The Cause of Death Is Doubtful
As a criminal police officer, my intuition for many years told me that this was a homicide case, and after the murderer killed the deceased, he destroyed the body by arson.
However, according to the results of the forensic autopsy, the deceased was still alive at the time of the fire. That is, the deceased died of carbon monoxide poisoning.
Obviously, the scene in front of him also made Ren Qiushi feel a little shocked.
Since the deceased was still alive at the time of the fire, why didn't he run? Did he take sleeping pills? How could you sleep so dead?
Ren Qiushi continued to perform the autopsy, and he cut open the bronchial tube, which also contained smoke and dust, but the deeper he went, the less smoke and dust there was, indicating that the deceased's breathing movement at that time was very weak.
The situation is strange and does not quite match the signs of a corpse at the scene of the fire......
Next, Ren Qiushi prepared to dissect the deceased's lung and heart tissue.
He gently held the trachea and slowly pressed down the ribs in his chest, trying to pull the internal organs out.
This is a complete test of forensic experience, not relying on theoretical knowledge can be completed, the force is too small, the heart and lungs can not be pulled out, the force is too large, the trachea will be broken.
In this way, an entire heart and lungs were pulled out.
This picture really stunned me.
During the whole dissection, I stood beside me, because I felt that a charred corpse, even if the picture was bloody and horrible, would not make me unacceptable, but at this moment, I deeply felt my stomach churning.
I subconsciously swallowed my saliva and hurriedly took a few steps back, keeping a certain distance from them.
"There was no damage to the heart, there were many hemorrhage spots on the surface of both lungs, and the signs of asphyxia were not obvious. Significant alveolar edema in the lungs, consistent with signs of carbon monoxide poisoning. Ren Qiushi said.
Could it be that the deceased really died of carbon monoxide poisoning from the smoke of the fire?
The lungs were cut open, and there was only a small amount of soot inside, and there was nothing abnormal.
"The deceased was lying in bed at the time, in a state of deep sleep, and the fire was not noticed, but the deceased's breathing was very weak, and there was no disease in the heart and lungs. Ren Qiushi was very puzzled by this autopsy.
The cause of death is now suspected, and a full autopsy is required.
"There were no visible injuries to the deceased's skull." Ren Qiushi carefully pried open the skull with a skull chisel and carefully observed the situation in his brain.
"Epidural hematoma found."
Epidural hematoma refers to the head by the flame and high temperature, the brain and meninges are heated, coagulated, contracted, separated from the inner plate of the skull, forming a gap, due to the rupture of the blood vessels of the dural blood vessels and the skull plate barrier, the outflow of blood collects in the space to form a hematoma, that is, epidural hematoma.
Ren Qiushi then examined the deceased's neck.
"There are no signs of fracture of the hyoid bone, acute laryngeal edema and acute necrotizing pharyngitis in the respiratory tract, and the respiratory syndrome of heat is obvious, which is consistent with the internal signs of a burned cadaver and is definitive evidence of burn death before death."
As the autopsy continued, more and more signs indicated that the deceased had died in the fire.
Finally, Ren Qiushi extracted the deceased's heart's blood, stomach contents, costal cartilage, etc., and sent them for examination, and continued to investigate more clues.
A few hours later, the forensic medical department received the test report of the biological samples sent for testing, and after sorting it out, Ren Qiushi handed over the autopsy report to me.
At the same time, the identity of the deceased has also been confirmed, and the deceased is Tang Xiujie, the director of the funeral home in Ningzhou City.
The autopsy report reads: "There were no fatal mechanical injuries on the deceased's body, blepharoconjunctival hemorrhage, obvious respiratory syndrome of fever, corpse spots, muscles, heart and blood were cherry red, carboxyhemoglobin in the blood was greater than 50%, no conventional poisons were found in the stomach contents, and no drug components were found in the blood......"
"Carboxyhemoglobin at more than 50 percent?! That's definitely the lethal amount of carbon monoxide poisoning. "I was shocked by the numbers.
Ren Qiushi nodded and said: "The time of death of the deceased also coincides with the time of the fire, and judging from the autopsy results, the cause of death is indeed carbon monoxide poisoning caused by the fire." But in the event of a fire, the person concerned should run away, how could he lie motionless on the bed and wait for death? He wasn't drunk or taking sleeping pills, which was weird. ”
"Could it be that his limited mobility?" I was also very surprised by this and came up with one of my own guesses.
"I found no other trauma on the deceased during the autopsy, and there were no findings at the scene of the crime that would limit his mobility. The strangest thing is that I judged by the smoke and dust in the lungs of the deceased, but the deceased's breathing was very weak and it is possible that he was in a near-death state. Ren Qiushi said slowly.
"This is very strange, I have seen Tang Xiujie, he is not yet forty years old, he looks very healthy, he does not look like he is suffering from some kind of acute disease. What a big living person, I haven't seen him all night, why is he dying? "I didn't figure out why.
Ren Qiushi shook his head, patted me on the shoulder, and said helplessly: "These are the only clues obtained from the autopsy, and you have to investigate the rest." ”
After speaking, Ren Qiushi turned around and left.
He was one of those people who never attended our case analysis meetings, and he would tell me all about the autopsy report and his findings before the meeting began.
In the office of the Serious Crime Unit, we conducted the first case analysis of this fire case.
On the surface, this is a casualty case caused by an accidental fire, but combined with Li Meng's previous investigation of Tang Xiujie by Li Meng and me, he is suspected of helping a criminal gang illegally destroy the body, I absolutely do not believe that he will die in an accident at this critical moment.
There are also autopsy results, Tang Xiujie's breathing is weak, she is in a near-death state, and the absolute fatal injury is carbon monoxide poisoning, but the cause of death is suspicious.
"If he killed in this case, then it must have been committed by an acquaintance, Tang Xiujie's home has no signs of theft and rummaging, valuables have not been lost, and there are no traces of damage to doors and windows." Lin Zifan said.
"After our investigation of community monitoring, last night, the monitoring facilities were suspected of being illegally invaded, and the system was forced to upgrade and update, resulting in the monitoring probes of the entire community being dormant last night. There is now reason to believe that it was a premeditated homicide. Li Meng said.
Jiang Tingbai had just come back from the trace examination department, and he took out a trace examination report: "Unfortunately, the fingerprints and footprints found at the scene were all the fingerprints of the deceased Tang Xiujie, and no traces left by the murderer were found. ”
"The murderer must have entered through the gate routinely, which is also the reason for his invasion of the community's monitoring facilities, it seems that this case can only be investigated from the community's monitoring." Xue Hang said in a deep voice.
We have already found out about Tang Xiujie's illegal cremation of the body, and at this time, he was killed and killed.
This is our opponent, it is definitely not simple, he did not leave a single clue, and even the way of killing met the conditions for accidental death by fire.
This is a near-perfect high-IQ crime......