The crime scene is a two-story building, the area is very large, and there are a total of seven deceased, and the distribution of the seven deceased at the crime scene is also very scattered.

The technical department took the scene investigation very seriously, and they collected a total of eight footprints at the scene, seven of which were from the deceased, so the eighth footprint is likely to come from the murderer in this case.

Moreover, this footprint shows that the murderer is a woman.

Through his own theory of criminal psychology, combined with the environment of the crime scene and the only clues, Li Meng judged that the female murderer was between fifteen and twenty years old, and had lived in a single family for a period of time.

All of this caused the puzzlement of Police Officer Wang, the captain of the Ningzhou City Criminal Police Team, who apologized slightly for interrupting Li Meng's criminal profile while expressing his doubts.

Because the technical team did not find any personal items belonging to the young woman in the entire second floor, including clothing, cosmetics, and even toiletries.

But how could the murderer not have these personal belongings if he lived here for a long time? Even if it's a towel or a toothbrush.

Li Meng seriously explained in response to Officer Wang's question: "If it is a visit, it will definitely not come alone, then since it is a person, and especially in this very sensitive time period of Chinese New Year's Eve, it shows that the relationship between the murderer and the single family must be very close." And the person who chooses to go to a relative's house for the New Year must have a small child. Moreover, through the investigation of the Shan family by the household registration department, all their immediate family members are these seven people, so the murderer must be a relative who is very close to the Shan family. ”

Li Meng's analysis may sound far-fetched at first, but when you think about it, it does make a lot of sense.

Because when we were young, almost all of us had the experience of going to my grandmother's or grandma's house alone for the New Year.

If you are an adult, especially after having a spouse, it will never be complicated by the expansion of your social relationships, and you will never go to a relative's house alone to celebrate the New Year.

Officer Wang pondered alone for a while, then nodded slowly.

After answering Officer Wang's doubts, Li Meng continued to share with us his criminal profile-

"So, the murderer was a woman, between the ages of fifteen and twenty, a relative of a single family, and a very close relative. The murderer's education is not high, although the relationship with the single family is relatively close, but the relationship between the two families is not good, otherwise he would not have brought any personal belongings with him when he came to the single family for the New Year. Of course, the possibility that the murderer took all his personal belongings after committing the crime cannot be ruled out, but this possibility is very small. Because the murderer was highly nervous after the killing, it was impossible to pack up his personal belongings so cleanly, leaving no traces at all.

Therefore, it is very likely that when the murderer came to Shan's house, he did not bring personal belongings at all. Moreover, the murderer should have been desperate after a major accident and suddenly came to Shan's house. But the Shan family seems to be very disgusted with the murderer, and even on the New Year, except for providing her with a pair of slippers, they did not buy her any personal belongings.

Therefore, the murderer was a girl who came to the single family in desperation after some major changes in her family. At the same time, the single family did not welcome the girl who came to join the family, but took in the girl out of kinship, or for some purpose. It was precisely because of the unpopularity of the single family that the girl felt hatred in her heart, thus completing the crime of extermination. But just the unpopularity of the single family is not enough to support her to complete the criminal act of destroying the door, and there must be greater hatred among them.

Therefore, I think it is important to focus on investigating the relatives of individual families to see if there are any girls in the age group of 15 to 20 years old, especially relatives whose families have just experienced major changes. ”

After listening to Li Meng, our minds are all sorting out and summarizing the clues of Li Meng's profile.

Because her criminal profile does provide us with a new investigation idea and direction.

After listening to Li Meng's criminal profile, Officer Wang showed a somewhat complicated smile.

Officer Wang is also a senior criminal policeman, and there are many criminal cases that he has solved, including some serious homicides.

For him, using traditional criminal investigation methods to investigate through evidence and clues is the most familiar and commonly used criminal investigation method.

Although criminal psychology is advanced, the criminal profile, no matter how it sounds, is like a guess based on the clues currently in hand, and there is no definite evidence to support it.

I understand Officer Wang's mood very well now, because I was in this state of mind when I first came into contact with crime profiles.

But then again, isn't the investigation based on evidence and clues in traditional criminal investigation also a kind of speculation to some extent?

Through speculation, the possibility is derived, and then by eliminating the possibility, the truth is finally derived.

Officer Wang swallowed hard and said in a deep voice, "Then ...... According to Li Meng's profile to investigate, focusing on the relatives of the single family. ”

Everyone has relatives, and the number of relatives of each person is very huge, whether it is immediate relatives or distant relatives, there are far and close relationships, especially the seven aunts and eight aunts that everyone often says. Therefore, the workload of investigating relatives is very huge, but fortunately, Li Meng helped us to screen our relatives through criminal profiles, so that we could investigate more conditionally.

But we still can't figure out what kind of hatred a little girl has with the Shan family, and what it is that supports her to complete the earth-shattering case of destroying the door.

While we were discussing the case, in the forensic autopsy room, Ren Qiushi and Zeng Lan were still performing autopsies on the seven deceased people in the case.

They have just completed the autopsies of deceased number one and deceased number two.

Just as they were enduring exhaustion and sleepiness, they were ready to continue the autopsy of deceased number three.

Ren Qiushi suddenly gestured towards Zeng Lan: "Wait." ”

Zeng Lan looked at him very puzzled: "What's wrong?" ”

Ren Qiushi frowned, pondered for a moment, and suddenly said, "First conduct an autopsy on the seventh deceased." ”

Ren Qiushi's mention made Zeng Lan feel very surprised.

Because for forensic doctors, there is no distinction between high and low deceased, and Ren Qiushi has no reason to conduct cross-numbered autopsies on the seven deceased who have already been numbered.

In other words, all seven bodies are to be autopsied at the same pace, like an assembly line in a factory.

Therefore, there must be a reason why Ren Qiushi did this......