Su Dakui's belt is reversed, and it is very likely that he did not tie it himself.

It was definitely an unexpected discovery, even one that could directly change the course of the case.

But who would put a belt on a septuagenarian?

Su Dakui disappeared after dinner in his watermelon field shack, which shows that his belt was normal all day.

"In the work of autopsy, we cannot use subjectivity, we must use objectivity." Ren Qiushi suddenly said.

Zeng Lan immediately understood what he meant, Ren Qiushi was saying that although in common sense, it is impossible for a septuagenarian to be violated, but from the perspective of a criminal case, the possibility of violation cannot be subjectively ruled out because of age and gender.

Because the body was found late and lacked key evidence, it has always been investigated according to the missing person case, so Ren Qiushi and Zeng Lan, as forensic doctors, did not participate in the investigation of the case, and they did not know the clues we had, let alone the key evidence that we had found the smell of perfume in the shack.

Zeng Lan recorded the belt found in the autopsy record sheet in detail, and it will be implemented in the autopsy report.

The autopsy continued, and after completely cutting off Su Dakui's clothes, the autopsy work followed.

After a long period of death and long-term immersion in water, Su Dakui's originally thin body had obvious swelling, his body was pale, and the skin near the ends of his limbs had folds.

What Ren Qiushi and Zeng Lan need to judge now is the cause of Su Dakui's death. And the first thing they need to judge is whether Ren Qiushi died of drowning, or whether he threw his body after death.

"There were no obvious traumas on the deceased's body, no obvious subcutaneous hemorrhage, and no obvious resistance and restraint injuries were found in the common areas. The corpse spots are mainly concentrated on the back, indicating that the deceased has not been moved or transferred for a long time after death. After Ren Qiushi observed the corpse table, he said in a deep voice.

Next, it is to determine whether you have drowned.

The most direct way to determine whether there is drowning is to observe the life reaction, especially whether there is mushroom-like foam in the mouth and nose, whether there is sediment in the mouth and nasal cavity, whether there is drowning in the trachea and lungs, and whether there is watery emphysema and Paltauf spots in the lungs.

If it is determined that it is drowned, the drowned fluid is also extracted for diatom experiments to determine whether the drowned fluid is the same as the water source where the body was found.

"Without mushroom foam, isn't it drowning?" Zeng Lan looked at the mouth and nose of the deceased and said in a deep voice.

Ren Qiushi nodded, and said lightly: "It seems that it is very likely to throw the body after death." ”

Ren Qiushi did a final body examination before the autopsy, which included examining the skull, eyelids, and other parts of the body to see if there were any fractures and soft tissue contusions caused by trauma.

After everything was examined, Ren Qiushi picked up the scalpel and made a standard straight incision from the deceased's neck all the way to the umbilicus.

After peeling off the subcutaneous soft tissue and mucous membrane, the deceased's ribs were cut off with the cooperation of Zeng Lan.

"There was no edema in the lungs, only a small amount of drowning fluid in the trachea, and no obvious life reaction was found." Zeng Lan said seriously.

"It seems that the cause of death of the deceased was not drowning." Ren Qiushi frowned tightly and said lightly.

Although Ren Qiushi was wearing a mask now, he couldn't judge his expression, but judging from his somewhat puzzled eyes, he was entangled at this time.

It's not drowning, no external injuries, no internal injuries, the upturned belt, what is the real cause of Su Dakui's death?

"The deceased is nearly seventy years old, could it be an accidental death?" Zeng Lan looked at Ren Qiushi, who was dissecting, and said softly.

"I was also thinking about this just now, the deceased is likely to have died suddenly due to some sudden disease, and now I want to check whether there are lesions in the main organs of the deceased." After Ren Qiushi finished speaking, he first set his eyes on the heart tissue of the deceased.

"The deceased's heart visibly increased in size, increased in weight, dilatation of the heart chambers, and a marked thickening of the walls of the coronary arteries. The deceased's heart had obvious lesions, and the heart tissue was extracted and observed with a light microscope. Ren Qiushi said in a deep voice, got up and walked to the side, took off the disposable rubber gloves and carried out hand cleaning.

Zeng Lan walked to Su Dakui's left side, cut off the arteries and veins of the heart, gently put his hands into the chest cavity of the deceased, picked up the deceased's heart, and put it into the special observation tray for internal organs.

Ren Qiushi opened a large optical microscope for forensics, the advantage of this microscope is that the structure of the sample can be directly seen without the need to slice the sample, so that the forensic doctor has a macroscopic understanding of the sample, and also provides an experience for the later observation of the sample section.

"There were atheroma plaques and calcifications in the arterial walls, blurred striations of myocardial cells, deep constriction of the nucleus, sarcoplasmic lysis, and the deceased died of myocardial infarction." Ren Qiushi said in a deep voice.

"Sudden death?" Zeng Lan suddenly frowned and asked.

Ren Qiushi nodded, and added: "The deceased suffered from coronary heart disease for a long time, which induced sudden cardiac death. ”

A qualified and professional forensic doctor should not only understand the structure of the human body, but also be a qualified and professional internal medicine and surgeon.

But how could he have died suddenly? And why was the body thrown into the river? Could there be any connection with that belt in the opposite direction? Zeng Lan asked a lot of questions in one breath.

But for forensics, these are not just questions, they are doubts, doubts that must be answered through an autopsy.

"There are many causes of myocardial infarction, such as emotional agitation, overwork, alcohol consumption, and oversatiety. In severe cases, minor injuries and colds can be triggered. But the causes of the deceased's myocardial infarction were certainly not these, and he must have encountered something at the time of his death. Otherwise, he would not have been thrown into the water shortly after his death. Ren Qiushi walked to the dissection table, looked at the body surface of the deceased, and fell into deep thought.

"Could it be that the deceased had an argument with someone at the time, and his mood swings were large, which caused his heart to beat rapidly, which induced myocardial infarction. Then the other party had a weak sense of law and was afraid of taking responsibility, so he threw his body? Zeng Lan pondered for a long time and gave a plausible guess.

But then he was denied by Ren Qiushi: "How to explain the belt of the deceased?" ”

"Maybe this is just a different way of life for the deceased." Zeng Lan said lightly.

Ren Qiushi shook his head, although he didn't understand the real inducement, he always felt that there was some kind of connection between the two.

An old man in his seventies, wouldn't he......