Yang Qiuchi also remembered that she asked Song Yuner to inquire about Shui Wanqi last night. When she heard that there seemed to be some good news, she sat down at the round table, waved to Song Yuner and let her sit down and talk, and asked, "What was the result of inquire last night?"

After sitting down, Song Yun'er explained the situation she had heard last night in detail, but she didn't say anything about Shui Wanqi's attempt to seduce Yang Qiuchi.

When Yang Qiuchi heard this, he was also a little shocked. He was not interested in the matter between Shui Wanqi and Zhao Xinle, the governor of Baoning Prefecture. Although he felt a little regretful, Shui Wanqi looked so pure and innocent on the surface. Unexpectedly, he was really aware of people but not his heart.

I heard that Zhao Xinle sent boxes of gold and silver to her in order to please Shui Wanqi. He was very confused. He was a fourth-rank magistrate and his official position was not very high. Where did he get so much money? His deputy Tongzhi was chopped off his head because he used the umbrella for the ship gang to sell private salt. At that time, he did not find out that the magistrate Zhao was involved in the gang's affairs. Did he secretly participate in it? Otherwise, where did he get so much money? In ancient times, no business could make a lot of profits than trafficking in private salt.

After Yang Qiuchi decided to return to Bazhou, he would tell Yun Leng the news and let him keep an eye on the prefect Zhao to see what was wrong.

What he has to deal with now is the murder case of Peng Siheng’s death dock. After hearing Song Yuner say that Peng Hexi had also hit Peng Si with a crutch, which made Yang Qiuchi even more angry.

Peng Si's death was already very complicated. There were already two people in front of him, and there were already two people in Shui Wanqi and Peng Laoqi. Unexpectedly, a crutch from Peng Hexi was added. In other words, in the past two days, Peng Si's head was hit by an inkstone, a bluestone slab and a crutch. Which one is his death? Or which places? It is useless to check the body surface alone. It seems that it must be dissected.

But this is not in modern society after all. If you secretly dissect yourself and let others know, it is not a trivial matter. If you don’t do it well, even the emperor will not be able to protect yourself.

What should I do? Should I take this risk? Yang Qiuchi was very hesitant. Peng Si was obviously not a good person. In order to find out who killed him, whether this person was worth taking this risk. If he wanted to take this risk, how should he protect himself?

Finally, Yang Qiuchi decided to take the risk and not find out the truth of the case. Fortunately, the damage this time was concentrated on the head, so there was no need for anatomy. Moreover, the anatomical wound on the head was easier to hide.

The dissection of Song Yuner cannot be told. After all, Song Yuner was also a member of the Ming Dynasty, and she may not be able to accept the fact that she cuts a person's head.

But if she doesn't tell her, don't bring her with her, and secretly dissect her, she will inevitably be suspicious. The best way is to help her.

Yang Qiuchi said: "Yun'er. Go and find a way to find out what part of Peng Hexi's crutch hit Peng Si, the top of his head, the back of his head, and the bottom of his head. It must be accurate."

"Okay!" Song Yuner accepted the task happily and jumped away.

Yang Qiuchi and Hong Ling greeted him and said they wanted to go and re-examine the body. If someone came to him, they would say they had gone out.

Then, Yang Qiuchi picked up the forensic evidence investigation box and hurried to the room where the corpse was stored. Close the doors and windows.

First divide the hair on the body and remove the scalpel from the box. Make an arc-shaped incision from behind the right ear through the top of the skull to the back of the left ear, and then turn the scalp forward and backward.

After examination, there was a subcutaneous bleeding area on the top of the head, which was smashed by Shui Wanqi's inkstone. There was also a long subcutaneous bleeding area on the right side. Yang Qiuchi's heart moved. It seemed that this should have been smashed by Peng Hexi's crutch.

There are no obvious deformities or fractures on the surface of the skull. Most craniocerebral injuries can cause skull fracture damage. However, the absence of skull fracture does not mean that there is no intracranial injury.

Yang Qiuchi put down the scalpel and took out the fine-toothed bone saw from the box to make a circular circumferential saw to open the inner and outer plates of the skull.

After opening the cranial cavity, he used a pair of scissors to cut the dura open the dura. As a result, the brain tissue in the dura rushed out from the cracks in the cut. It was obvious that intracranial hemorrhage in Peng Sidi caused an increase in the intracranial pressure. Once the dura that wraps the brain tissue is cut open, the brain tissue inside will of course squeeze out under high pressure.

But where was the bleeding? Yang Qiuchi observed carefully. What surprised him was that there was no hematoma at the corresponding position of the long bleeding area on the right and the corresponding position of the back of the head. This means that the crutch of Peng Hexi on the right and the impact of Peng Laoqi on the back of the head did not cause Peng Si's intracranial hemorrhage, so it was not the cause of death.

Where is the intracranial hemorrhage that causes brain tissue to rush out?

When I looked at it, I first entered Yang Qiuchi's eyes. It was a small hematoma under the dura mater on the top of the deceased's head. It was composed of dark red blood clots. There was no new membrane formed around the hematoma, and there was no blood dissolution or liquefaction in the hematoma. Therefore, it is certain that this hematoma was newly formed. This coincides with the time when Shui Wanqi smashed the deceased's head with an inkstone two days ago.

However, Yang Qiuchi was very strange. This hematoma was obviously formed by acute subdural hemorrhage.

Due to the small amount of bleeding, the hematoma is relatively small in size, which is unlikely to cause such high intracranial pressure. Such a small hematoma is not enough to cause Peng Si's death.

Generally speaking, intracranial hemorrhage must reach more than 100 milliliters before it can cause death. This hematoma is far from reaching, and the increase in intracranial pressure it causes is limited and not enough to cause death of the deceased.

Therefore, there must be another reason for the deceased's brain tissue to cause the deceased to make a fuss, that is, there must be another larger hematoma.

Yang Qiuchi's speculation was quickly confirmed. He found a cyst cavity on the side of the left cerebral hemisphere of the deceased, between the brain's dura mater and the arachnoid membrane. This was a cyst larger than an egg. After incision, it was found that there were about 200 milliliters of blood and blood clots inside, and the left cerebral hemisphere had been significantly crushed.

This is a thick-walled cyst formed by chronic subdural hemorrhage, and the surroundings of this hematoma are surrounded by a new membrane formed by a new connective tissue. Based on this, it is speculated that the time for the cyst to form should be about one month.

After searching, a crack was found in the corresponding subdural bridge vein, which was the outlet that caused the subdural bleeding.

Based on the size of the cyst and the compression effect on brain tissue, it is almost certain that this is the fundamental reason for Peng Si's death.

However, Yang Qiuchi took out the deceased's brain carefully and conducted a thorough examination, and no other damage or lesions were found.

Since Peng Si did not have obvious lesions in his craniocerebral brain, this chronic subdural bleeding should not be caused by the disease, but traumatic.

Based on the examination, it can be inferred that one month ago, Peng Si had suffered an external trauma on the left side of his head. Although this trauma did not cause a fracture of his skull, the violent shock caused the deceased torn and bleeding from the vein of the deceased. Because the rift was very small, the amount of bleeding was also very small.

This chronic subdural bleeding is very dangerous because it causes a slow increase in intracranial pressure. The human body can adapt to the changes in intracranial pressure to a certain extent by adjusting factors such as the capacity of cerebrospinal fluid and the volume of brain parenchyma. Therefore, the injured will not have too obvious symptoms and can still live normally.

However, if the bleeding does not stop, the intracranial pressure will slowly and continuously increase, causing brain hernia, that is, the displacement of brain tissue from the high pressure zone to the low pressure zone, causing compression of the brain stem and causing central nervous paralysis and death.

Of course, Peng Si's death did not develop according to this normal rule. Before the injury development process a month ago, before reaching the critical point of qualitative change, Peng Si's head was hit by a Shui Wanqi inkstone, causing intracranial hemorrhage in another place. However, this time it was acute subdural hemorrhage.

Although the amount of bleeding this time is not large, it will not cause death to the deceased in a short period of time, but when Peng Si's intracranial pressure is already very high, this small amount of bleeding has led to the breaking of the critical point, causing Peng Si to die suddenly on the way home.

Therefore, if the injury that Peng Si was done a month ago was intentionally performed by someone, then that person should bear the main responsibility for Peng Si's death and Shui Wanqi was secondary responsibility.

What needs to be clarified now is whether Peng Si’s injury a month ago was injured, self-injured or accidental. If you find out this problem, you can declare the case solved by pronounced.

Yang Qiuchi put Peng Si's brain back into the skull cavity, covered the skull cover, returned the scalp to its original position, conducted a hidden suture, and then sorted the hair. From the appearance, it was impossible to see that the corpse had undergone head dissection. The next step is to bury the corpse.

After sorting it out, Yang Qiuchi opened the door and returned to the room to put the forensic evidence investigation box. He washed his hands, sat by the window, and slowly tasted the cup of the best Longjing brought by Hong Ling.

After sitting for a while, Song Yuner came back. When Yang Qiuchi saw her smiling face, he immediately knew that she should have gained something.

Sure enough, Song Yuner said, "Brother, I have found out. I asked several slaves. They proved that the night before Peng Si died, they did come to Pengjiazhuang to find Mr. Peng. They told me that Peng Laoqi had beaten him. They borrowed money from Peng Hexi and said that they wanted to redeem Miss Chunhong immediately. The two started arguing. Peng Hexi hit Peng Si on the head with a crutch, and then beat him in the hall. Several slaves saw it."

"Where is the hit? Is it this position?" Yang Qiuchi smiled and pointed to his right temporal part.

Song Yuner opened her eyes wide: "How did you know? Have you followed me? Or have you investigated and deliberately made fun of me?"

"How dare I?" Yang Qiuchi smiled, "I guessed it nonsense."

"Then why did you guess so accurately?"
Chapter completed!