"Are you sure that the owner of the severed finger is one of the perpetrators?"

"Then there is still something wrong?" Zhong Xin's eyes widened: "How could the DNA test results be wrong?"

"No," Su Ping said quickly: "That's not what I meant. It's just that there are fingerprints of the owner of the severed finger in the nails of the deceased. Can we really confirm that the owner of the severed finger was present at the scene?"

Zhong Xin was stunned.

This is a bit convoluted.

But fortunately, with many years of work experience, Zhong Xin immediately understood what Su Ping meant.

He quickly turned back to the autopsy table, took a magnifying glass and looked at the hand of a deceased person for a long time, then smeared something on the wrist of the deceased, observed carefully for a moment, and then put something that looked like transparent glue on it, and then

Tear it off again, stick it on a glass slide, and observe it under the microscope for a while.

After a while, he walked back to Su Ping, shook his head and said, "It is certain that the skin tissue in the fingernails of the deceased was scratched by herself when she resisted desperately when she was killed.

However, no epidermal damage or subcutaneous capillary rupture was found in the nail gaps. It can be seen that the murderer did not clean the deceased's nail gaps after committing the crime, which may have been unexpected.

Furthermore, the deceased's skin was tight, local cadaveric spasms appeared, and his hands were claw-like. In this case, if the murderer had grabbed the deceased's hand and scratched someone's skin, it would have definitely left traces on the wrist, including indentations.

and sweat, oil, etc. secreted by fingers.

In short, the skin flakes between the deceased's fingernails were scratched by her, which at least proves that the owner of the severed finger was present when she was killed."

Zhong Xin knew that although the two of them knew something about forensic medicine, their knowledge was too superficial and mostly based on experience. This sentence was as straightforward as possible.

"If this is the case, will the deaths of these girls be related to this severed finger?" Su Ping asked: "The murderer has a grudge against them because of their severed finger?"

After a pause, he asked again: "How long has it been since the finger was severed? Have you found out?"

"It's hard to say for the time being." Zhong Xin shook his head: "I did a slice observation and found that the cell membrane of the finger was severely damaged. It is speculated that the cell structure was destroyed due to freezing. The cell membrane is filled with cytoplasm, which is mainly liquid. The volume of water freezes at low temperatures.

It will grow larger and rupture the cell membrane.

In this case, it is difficult to deduce the disconnection time with just one finger. We can only make a rough guess based on the ion concentration and water loss. The laboratory is stepping up testing and we should wait until dawn. We should be able to draw a conclusion at dawn."

"Are there any other discoveries?" Xun Mu asked again.

"No more." Zhong Xin said: "The previous investigation report from the toxicology laboratory was also sent over. No poisoning tendency was found, and all indicators were normal. If you want to draw a conclusion from the autopsy as to why they did not call for help, I'm afraid you have to let

You are disappointed.

I also specially dissected their necks and observed their vocal cords and surrounding tissues. No congestion was found, which also ruled out the possibility of voice loss caused by problems with their body functions.

Obviously, there should be other subjective reasons for their silence.

Of course, when people are extremely frightened and greatly stimulated, they may indeed experience numbness and sluggishness in their hands and feet, unable to move or make a sound. It is somewhat similar to a nightmare, which is considered to be an irritating, temporary, and transient condition.

Onset of hysteria.

But it is untenable, unreliable, and very unlikely for five people to have this situation happen at the same time. What’s more, they can run, jump, and move to the top of the rooftop. Logically speaking, they will not be unable to speak out.

Voice.

Not to mention, even if it is hysterical aphonia and everything else is normal, the vocal cords and surrounding tissues should still be congested under the influence of hormones and the nervous system."

"That's strange." Xun Mu was puzzled: "What kind of situation could make them..."

Su Ping had an idea and suddenly thought of a possibility. He interrupted him and said, "Could it be that our guess is fundamentally wrong?"

"oh?"

"They were not scared away or rushed to the rooftop at all, but were deceived!" Su Ping said: "Even when they went up, the group of people were still talking and laughing? The so-called supernatural events, except for one person

The girl drank boiling water in the boiling water room for more than two hours, and it only happened after they left?"

Xun Mu was taken aback for a moment, then heyed: "Don't tell me, it's really possible! If so, this mystery will be solved!"

Zhong Xin opened his mouth and asked softly: "Don't these girls even close the door when they leave?"

"Isn't there a girl outside who is turning on the water?" Su Ping said, "Besides, it's too easy to open the dormitory door without locking it. A piece of cardboard is inserted through the crack of the door, and you pull and push.

It’s done. It only takes less than half a minute if you’re proficient, but if you’re not proficient, you can try your luck and open it a few times.”

After breaking through this blind spot, the knot in their chests was relieved and they were in a great mood.

Although this guess may not be correct, the possibility is not low. All we have to do next is to find a way to prove or disprove it.

And if the guess is correct, it can also further explain the perpetrator. At least one of the perpetrators and the victim know each other, and they should have a good relationship with each other.

Then the scope of investigation will be much smaller.

After asking Zhong Xin a few more questions, the two left the anatomy room with satisfaction and went back to the duty room to rest.

I got up early the next day and went to the public opinion department to get some news.

Although the public security official Weibo and others intervened and paid attention, the story of the death of a nursing student from Yuqiao Health School's fifth specialization was inevitably spread, and it was adapted and adapted by countless people. As of now, it is monitored

Yes, there are seven or eight versions.

This is just a night's work. If public opinion continues to ferment, the impact will only be greater, and both the health school and the police will have to bear great pressure.

In today's era of so developed Internet information, it is obviously not feasible to forcefully suppress public opinion. Even if you remove hot searches and delete posts, the matter will spread quickly and it will be difficult to completely control it.

Therefore, the only way is to solve the case as soon as possible and announce the truth.

Fortunately, nothing new happened in the school. The entire health school was under police control last night. Although there are no restrictions on the entry and exit of personnel, everyone who enters and exits must be registered.

I believe that the perpetrator should still be detained in the school.

After a simple breakfast, Xun Mu once again gathered all the investigators, and while heading to the medical school, he used the intercom in the car to arrange tasks for each investigation team.
Chapter completed!