Yang Qiuchi also remembered that she asked Song Yun'er to inquire about Shui Wanqi last night, and when she heard that she seemed to have some good news, she sat down at the round table, beckoned to Song Yun'er to sit down and talk, and asked, "What was the result of the listening last night?" ”

After Song Yun'er sat down, she told her in detail what she heard last night, but she didn't say anything about Shui Wanqi's desire 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 prefect of Baoning Mansion, although he felt a little regretful in his heart, this Shui Wanqi looked so cold and jade on the surface, but he didn't expect it, alas! I really know people and faces, but I don't know my heart.

I heard that this Zhao Xinle sent boxes of gold and silver to her in order to please Shui Wanqi, and he was very puzzled, he was a fourth-grade prefect, and his official was not very high, where did he get so much money? His deputy, Tongzhi, was beheaded because he used his umbrella for trafficking illicit salt to the boat gang, and he didn't find out that the Zhao prefect was involved in the boat gang at that time, could it be that he was also secretly involved? Otherwise, where would you get so much money? In ancient times, there was no business as lucrative as trafficking in illicit salt.

After Yang Qiuchi decided to return to Bazhou, he wanted to tell Yun Xuan the news and let him keep an eye on this Zhao Governor's Mansion to see what was going on.

Now what he has to deal with is still Peng Siheng's death at the dock, and after listening to Song Yun'er, Peng Hexi also beat Peng Si with a cane, which made Yang Qiuchi even bigger.

Peng Si's death was already very complicated, and there were already two intricacies in front of him, Shui Wanqi and Peng Laoqi, but he didn't expect to add a cane from Peng Hexi. In other words, in the past two days, Peng Si's head has been hit by an inkstone, a bluestone slab and a crutch, which one is his death? Or which ones? Examination of the body surface of the corpse alone is useless, and it seems that an autopsy is necessary.

But this is not in modern society after all, if you secretly dissect it once others know, it is not a trivial matter, if you don't get it right, even the emperor can't protect himself.

What to do? Don't take the risk. Yang Qiuchi was hesitant. This Peng Si is obviously not a good person, in order to find out who killed him, is it worth taking this risk for this kind of person. If you want to take this risk, how can you protect yourself?

In the end, Yang Qiuchi still decided to take a risk, if he didn't find out the truth of this case, he was not willing, but fortunately, this time the damage was concentrated in the head, and there was no need for a full-body autopsy. Moreover, the anatomical wound of the head is also relatively easy to hide.

The dissection can't be told to Song Yun'er, after all, Song Yun'er is also from the Ming Dynasty, and she probably can't accept the fact of cutting people's heads.

But if you don't tell her, don't take her, and dissect it quietly, it is inevitable that she will be suspicious. The best thing to do is to break her up.

Yang Qiuchi said: "Yun'er, you go and find a way to inquire about where Peng Hexi's crutch hit Peng Si, the top of his head, the back of his head, or where he is." Be accurate. ”

"Good!" Song Yun'er happily accepted the task and jumped away.

Yang Qiuchi said hello to Hong Aya, saying that he was going to re-examine the body, and if someone came to look for him, he would say that he had gone out.

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

First, the hair of the corpse was separated, the scalpel was removed from the box, and an arc cut was made from the back of the right ear through the top of the skull to the back of the left ear, and then the scalp was turned 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 is also a long strip of subcutaneous hemorrhage on the right temporal region, Yang Qiuchi's heart moved, it seems that this should be smashed by Peng Hexi's crutch.

There are no obvious deformities or fractures on the surface of the skull. Most head injuries result in skull fractures, but the absence of a 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, and sawed the inner and outer plates of the skull in a circumferential shape.

After opening the cranial cavity, he used a pair of scissors to cut open the dura mater, and as a result, the brain tissue in the dura mater rushed out of the cut slit. Obviously, Peng Si's intracranial hemorrhage caused an increase in intracranial pressure, and once the dura mater that enveloped the brain tissue was cut, the brain tissue inside would of course be squeezed out under high pressure.

But where exactly is the bleeding? Yang Qiuchi made a careful observation, and to his surprise, there was no hematoma at the corresponding position below the long strip-like hemorrhage area in the right temporal region and the corresponding cranial position at the back of the head. That is to say, the crutches of Peng Hexi in the right temporal part and the impact caused by Peng Laoqi's kick in the back of the head did not cause Peng Si's intracranial hemorrhage, so neither of them was the cause of death.

So where is the intracranial hemorrhage causing the brain tissue to rush out?

After contemplating it, the first thing that entered Yang Qiuchi's eyes was a small subdural hematoma on the top of the deceased's head, which was composed of a dark red blood clot, no new membrane was formed around the hematoma, and there was no blood dissolution and liquefaction in the hematoma, so it was certain that this hematoma was newly formed. This coincided with the time when Shui Wanqi smashed the top of the victim's head with an inkstone two days ago.

However, Yang Qiuchi is very strange, this hematoma is obviously formed by a sudden subdural hemorrhage, because the amount of bleeding is not large, the volume of the hematoma is relatively small, it is unlikely to cause such a high intracranial pressure, and such a small hematoma is not enough to cause Peng Si's death.

In general, intracranial hemorrhage is more than 100 milliliters before it can lead to death. This hematoma is far from being reached, and the increase in intracranial pressure it causes is limited and not enough to cause death in the deceased.

Therefore, there must be another reason for the brain tissue of the deceased to boil, that is, there must be another relatively large hematoma.

Yang Qiuchi's speculation was quickly confirmed, and on the side of the deceased's left cerebral hemisphere, between the cerebral dura and arachnoid membranes, he found a cyst. It was a cyst larger than an egg, and when it was cut open, it showed about 200 milliliters of blood and clots, and the left cerebral hemisphere had been visibly depressed.

This is a thick-walled cyst with a chronic subdural hemorrhage that has been surrounded by a new membrane of new connective tissue. Based on this, it is assumed that the time for the cyst to form should be about a month.

Upon search, a tear was found in the corresponding subdural bridge vein, which caused the subdural hemorrhage.

Based on the size of the cyst and its compressive effect on brain tissue, it is almost certain that this was the root cause of Peng Si's death.

However, Yang Qiuchi was still very cautious to remove the deceased's brain, and conducted a thorough examination, and no other injuries and lesions were found.

Since there is no obvious lesion in Peng Si's brain, this chronic subdural hemorrhage should not be caused by disease, but by trauma.

Based on the examination, it can be inferred that Peng Si had suffered a traumatic injury to the left side of his head a month ago, and although the trauma did not cause him to fracture his skull, the violent concussion caused the deceased's bridge vein to tear and bleed. Since the tear is small, the amount of bleeding is also small.

This kind of chronic subdural hemorrhage is very dangerous because the increase in intracranial pressure caused by it is very slow, and the human body can adapt to this change in intracranial pressure to a certain extent by adjusting the volume of cerebrospinal fluid and the volume of brain parenchyma. Therefore, the injured person will not show too obvious symptoms and can still live a normal life.

However, if the bleeding does not stop, the intracranial pressure will slowly and continuously increase, causing brain herniation, which is the displacement of brain tissue from the high-pressure area to the low-pressure area, resulting in compression of the brainstem and central nervous system palsy and death.

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

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

Therefore, if Peng Si's injury a month ago was also intentionally carried out by a person, that person should be primarily responsible for Peng Si's death, and Shui Wanqi should be secondarily responsible.

What needs to be clarified now is whether Peng Si's injury a month ago was an injury, self-injury or an accident. After investigating this problem, Peng Si's bizarre death case can be declared solved.

Yang Qiuchi put Peng Si's brain back into the cranial cavity, covered the skull, returned the scalp to its original position, performed covert sutures, and then arranged the hair. From the outside, it is not at all apparent that the corpse has ever undergone a head dissection. The next step is to bury the body.

After tidying up, Yang Qiuchi opened the door and came out, returned to the room and put the forensic evidence investigation box away. I washed my hands, sat by the window, and slowly tasted a cup of the best Longjing brought by Hongyan.

After just sitting for a while, Song Yun'er came back. As soon as Yang Qiuchi saw her smiling face, he immediately knew that she should have something to gain.

Sure enough, Song Yun'er said: "Brother, it's been found out, I asked a few house slaves, and they proved that the night before Peng Si's death, he did come to Pengjiazhuang to find Mr. Peng, and told him that Peng Laoqi beat him, and borrowed money from Peng Hexi and said that he was going to redeem Chunhong girl immediately, and the two quarreled, Peng Hexi hit Peng Si's head with a cane, and he beat it in the hall, and several house slaves saw it. ”

"What position to hit? Isn't it the location? Yang Qiuchi smiled and pointed to his right temporal part.

Song Yun'er's eyes widened: "How do you know?" Are you stalking me? Or have you already investigated and deliberately made fun of me? ”

"How dare I." Yang Qiuchi smiled, "I guessed blindly." ”

"Then how did you guess so accurately?"

"I'm a god operator!" Yang Qiuchi smiled and patted his chest.

(To be continued)