This is an acquaintance who committed a crime, so this acquaintance must live in this city.

After completing the crime, the murderer left the scene of the crime very calmly, and then disappeared from everyone's field of vision, and even the murderer was not found in the surveillance video.

So, where will the murderer go?

Is it walking, or driving?

However, the technical team did not find rut marks at the scene of the crime, and now there is light snow outside, and there are not many families in Guting Alley who stay here for the New Year. So if there are rut marks, it's easy to spot.

The workload of trace and autopsy is very huge, and we are unable to get any valuable clues in a short period of time.

Therefore, for the time being, we still want to focus on the direction and focus of the investigation of the case on the social relations of the seven deceased.

The murderer and the seven deceased were very familiar and had a very great hatred, so there should be some clues from the social relationship.

At present, the household registration department of the Ningzhou Municipal Public Security Bureau is investigating the identity information of the seven deceased, and the socio-professional identity of the seven deceased is being investigated through the internal system of the public security bureau.

Soon, the Household Registration Section sent information on the social occupations of the seven deceased.

The information shows that the male owner Shan Xuan is a pastry chef in a cake shop, and the hostess Qin Jing is a cashier in a cake shop.

The eldest son of the two, Shan Jinfeng, is in the sixth grade of primary school this year and is studying at the No. 1 Experimental Primary School in Ningzhou City. The youngest daughter, Shan Jinping, is at home and is cared for by the elders of both parents.

The hostess's parents are both retired workers, and the hostess's mother is a farmer.

"The murderer can form such a huge hatred with the Shan family, it is very likely that it was caused by Shan Xuan and Qin Jing at work, they are both service industries, and the probability of causing conflicts is also relatively high if they have been in contact with people for a long time. After all, retired workers and peasants do not have any hatred with others. Officer Wang spoke first.

What he said is very reasonable, but it cannot be used as the only direction for us to solve the case.

Because as a criminal policeman, we have to take into account all the possibilities.

Although Shan Jinfeng is only a sixth-grade student, he cannot completely clear his suspicions. Theoretically, there is still something he experienced in school that led to a hatred with his classmates or teachers. I made up my mind and said in a deep voice.

Li Meng also agreed with me, and then said: "Maybe there was a conflict between Shan Jinfeng and his classmates, and then the parents of his classmates took revenge...... But what kind of hatred can there be between classmates? How can it rise to the level of extinction? ”

"Anything is possible, and we can't let go of any possibility. Remember He Mingxuan's case? Who would have thought that a five-year-old child would have an adult in his forties or fifties hidden in his body? Xue Hang said lightly.

"In addition to this, it is very likely that relatives will commit crimes. Because hatred between relatives is the most likely to trigger hatred, but it is unreasonable to say it directly, this hatred is hidden in the heart for a long time, until an incident happens by chance, which will instantly ignite the anger in the heart and make people have the criminal psychology of killing people with passion. Lin Zifan gave a different view.

He paused, and suddenly said: "The reason why the murderer killed may be very simple, it is just one word - money. ”

On the one hand, we will continue to investigate the units and schools of Shan Xuan, Qin Jing, and Shan Jinfeng, and investigate whether they have any conflicts with others during their work and school. On the other hand, investigate whether the individual family has had a financial dispute with another person. I settled down and said earnestly.

Immediately afterwards, I added: "In addition, focus on the investigation of relatives living in Ningzhou City. ”

The direction of the investigation of the case has been clarified, but it is very difficult to implement it.

Because it is the New Year period, the unit and the school have been closed for the holidays, and the employees, teachers, and classmates have gone home for the New Year, and we have no contact information for them at all, so there is no way to investigate.

Even if it's not the New Year's season, the number of investigations and visits is huge, and there are no breakthrough clues in the short term.

At the same time, the forensic medical department is undergoing intense autopsy work.

Ren Qiushi and Zeng Lan will complete all the autopsies on the seven deceased tonight.

On today's special day, the colleagues in the forensic department have all been on vacation, and even Ren Qiushi and Zeng Lan have been urgently transferred back.

The workload is also enormous.

"Let's get started."

Ren Qiushi looked at the seven body bags on the ground in the dissection room and said in a deep voice.

"Seven corpses, we can rush out the autopsy report before dawn is already a god's speed." Zeng Lan tilted his head, took a deep breath, and muttered.

The seven bodies had all been numbered according to the procedures of the autopsy at the scene, and they first opened the body bag of body No. 1, which contained Shan Xuan's body.

Ren Qiushi held the deceased's armpit, Zeng Lan grabbed the deceased's ankle, and the two worked together very tacitly to carry the body to the autopsy table.

The deceased had developed severe mortis, and the two of them did not exert much effort before the body lay on the autopsy table.

The first step in the autopsy is to remove the clothes worn by the deceased.

"The deceased No. 1, Shan Xuan, male, aged 43 years, 176 cm tall, weighed 70 kg, had normal nutrition, had no abnormal development, and had a knife wound on the chest on the surface of his body, which was absolutely fatal. No other surface injuries such as resistance injuries, restraint injuries, or coercion injuries were found on the body. Ren Qiushi said in a deep voice while installing the blade for the scalpel in his hand.

Zeng Lan turned on the autopsy recording device, and at the same time carefully recorded the natural condition of the first deceased on the autopsy record sheet.

At the same time, she took out a wound measuring tape to measure the wound on the deceased's chest: "The length of the wound is 5.6 centimeters, one end is blunt and flat, and the other end is slightly torn, and the murder weapon is a single-edged fruit knife." ”

"At 0:26 a.m. on October X, the first autopsy was performed." Ren Qiushi said in a cold voice, and then stretched the cold and sharp scalpel blade in his hand to the neck of the deceased.

Gliding down the centerline, the sharp scalpel cut through the deceased's skin until the sternum was exposed.

Cutting off the ribs of the deceased, a complete and incomplete heart appeared in front of Ren Qiushi.

The reason why it is incomplete is because there is a visible wound on the heart.

The murderer used a fruit knife and pierced the left atrium of the deceased, which was the absolute fatal wound of the deceased.

Fast in and fast out, a knife is deadly.