Geng Jianqing came to the city bureau faster than Chen Yi imagined, at this time the work of a comprehensive autopsy has not yet ended, the monitoring is also under investigation, and Cai Wenwen's family is still on the verge of collapse.

The white-haired person sending the black-haired person is the most unacceptable, Cai Wenwen's mother almost fainted, and she didn't want to believe that her daughter, who had been with her for twenty-seven years, would die suddenly, and he killed her.

Disaster fell from the sky, and that feeling was like a thousand arrows piercing the heart, and I couldn't let go of it until I died.

In the past few years, Chen Yi has seen a lot of life and death, and what he can do is to do his best to arrest the murderer and bring him to justice.

"Geng Bureau!"

Seeing Geng Jianqing appear alone in the case handling hall, all the police officers hurriedly stood up and saluted.

This is a legend of the police force, the deputy director of the Imperial City Criminal Investigation Bureau, and a first-class police superintendent, who can be called the idol in the minds of every criminal policeman and the target of his dreams.

The other party suddenly came to the detachment, and everyone was surprised, as well as surprised and panicked.

Geng Jianqing held a document in his hand with a serious expression, he should have finished reading Ning Cheng's case, he nodded and motioned for everyone to continue working, and then walked to Chen Yi's side.

Chen Yi was still looking at the whiteboard in front of him, and the words on it had not increased, and there were still only six.

Cai Wenwen, Bi Xuelan.

"Geng Bureau." Chen Yi turned his head.

Geng Jianqing stared at the whiteboard for a while and said, "Know I'm coming?" ”

Chen Yi: "Hmm. ”

Geng Jianqing: "How old is the victim?" ”

Chen Yi: "Twenty-seven years old, unmarried. ”

Geng Jianqing: "What about the trauma? ”

Chen Yi: "There are no external injuries, the clothes are intact, and the autopsy results have not yet come out, so it can be determined that there has been no sexual assault for the time being." ”

Geng Jianqing: "What type of murder weapon?" ”

Hearing this, Chen Yi picked up a marker and drew the approximate shape of the murder weapon on the whiteboard.

Seeing this sharp tool that took people's lives, Geng Jianqing took a deep breath and said slowly: "It's the same as Imperial City, it's the same as Ningcheng, this is a series of murders. ”

A series of cases is a series of cases, and the names are different and mean the same.

Chen Yi nodded, and it was already time to combine the cases for investigation.

Geng Jianqing: "I just discussed with the old side, if it is a series of murder cases, the establishment of a 405 task force, this time he must be found, otherwise it is very likely that new victims will appear in two years." ”

Chen Yi: "405? Was the victim of the Imperial City killed on April 5th? ”

Geng Jianqing: "Yes. ”

Chen Yi: "Qingming Festival? ”

April 5th is not necessarily the Qingming Festival, it may be the 4th or the 6th.

Geng Jianqing: "Qingming Festival." ”

Chen Yi: "I remember you said before that the victim died in the cemetery, is there any relationship between the two?" ”

Geng Jianqing replied: "Yes, the victim's younger brother died of illness and was buried in the cemetery at the scene of the crime, and she should have been killed when she went to sweep the grave." ”

Chen Yi thought for a moment and asked, "Since it is a tomb sweep, why didn't the victim's parents go?" ”

Geng Jianqing: "You reacted quickly, this is a suspicious point in this case, on the day of the crime, the victim and her parents had already gone to clean the grave once, the time was in the morning, and the victim was killed in the afternoon, and she went again." ”

"As for why she went to the cemetery for the second time, her parents couldn't give a reasonable explanation, they could only think that they missed it too much, and couldn't help but go back to see it."

Chen Yi: "In this case, the victim Cai Wenwen also has a younger brother who is in college, what about Ningcheng? ”

Geng Jianqing: "There is no one in Ningcheng, the victim Bi Xuelan has two sisters. ”

Chen Yi was silent, it was not a common denominator, the common denominator needed to have all three.

The characteristics that are now in front of me are only women in their twenties and thirties, and the rest is not clear for the time being.

"Do you have a clue here?" Geng Jianqing asked.

Chen Yi: "The case is still under investigation not long after it happened, and the victim's family is already in the team, so I haven't started to ask, and I need to wait for them to calm down." ”

Geng Jianqing waved his hand: "Let's talk in another place." ”

Chen Yi: "Okay, go to my office." ”

The two came to the detachment leader's office, and Chen Yi poured a cup of tea for Geng Jianqing and handed over the cigarette.

Geng Jianqing took the light, and the smoke rose, covering his deep eyes, where there was calmness and composure that had been tempered by the years.

For criminals, this kind of eyes are sharp and oppressive.

"The dossier of the Imperial City has not yet been transmitted, let's take a look at Ningcheng first." Geng Jianqing pointed to the file on the desktop.

"Okay." Chen Yi nodded, picked up the thick document and flipped through it.

He read it quickly, focusing on the materials of the investigation activities, including the investigation report, the investigation record, the inquest record, etc., which are the most important components of the criminal file.

In the process of Chen Yi's understanding of the Ningcheng case file, Geng Jianqing was not idle, and said: "In most of the series of cases, the suspects have common psychological characteristics, such as loneliness, inferiority, anger and indifference, etc., these characteristics have a great probability of forming in childhood, and the proportion of abuse factors is relatively high. ”

"Judging from the Imperial City case and the Ningcheng case, the murderer has an extremely calm personality and a high degree of planning, and the targets selected are all young women between the ages of 20 and 30, but there is no abuse and sexual assault, which shows that he has no aggressive personality disorder, and can basically exclude antisocial criminals."

Chen Yi was single-minded, listening to Geng Jianqing's words and looking through the dossier.

Geng Jianqing continued to speak: "Let's start from the broad range of criminal groups, among the criminal population, 40 percent have dangerous personalities, and 60 percent have dangerous mental knots, dangerous personalities are divided into congenital and acquired, congenital is anti-social, which has just been ruled out, and acquired is the criminal personality and defective personality formed through experience. ”

"Dangerous knots, intentional knots, knowing knots, and complex knots."

"I didn't find the common ground between the Imperial City case and the Ningcheng case, Chen Yi, which kind of murderer do you think the murderer belongs to?"

Chen Yi: "Of course, it's a defective personality or a dangerous heart knot. ”

The danger knot is an important topic in criminal psychology, the meaning is the concealment of crime, the knot is the criminal paranoia, and the complex is the randomness of the crime.

The dangerous knot is that the suspect is cognitively very paranoid, thinks that it is wrong, and also thinks that the victim is wrong, and is paranoid to find the rationality of the behavior.

In the case of a series of crimes, the victims often have a high degree of similarity in characteristics, such as the same occupation, the same behavior, the same hobbies, and so on.

For example, if a suspect hates a doctor, then his targets are all doctors, and if he hates domestic violence, then his targets are all domestic abusers.

The suspect of complex psychology is lonely and introverted, and the process of committing the crime is perverted, and the perversion mentioned here is not the brutality of the modus operandi, but the unjustified motive, and the victims are often very innocent, which is highly similar to antisocial psychology.

Chen Yi prefers to the intentional knot category because the victims in the intentional knot series of crimes have no obvious commonality, and the motive is difficult to analyze, which is the criminal cover-up of the intentional knot.

Not active masking, but passive masking.

To the suspect, he has the necessary reason to commit the crime, but to the onlooker, this reason may be incomprehensible and incredible, so it is difficult to figure out.

Since Geng Jianqing said that he did not find the common ground between the Imperial City case and the Ningcheng case, then the possibility of a knot mentality is the greatest.

A college student, a stay-at-home mother, a bank clerk, except for the same gender and similar age, nothing else matches.

Therefore, the motive of the murderer is very secretive and not so easy to find.

Geng Jianqing nodded: "I think so too, the cases of Imperial City and Ningcheng can't be connected, so it will be difficult to gain anything from the murder case that just happened in Yangcheng." ”

Chen Yi asked: "Uncle Geng, has the murder weapon in the Imperial City case been locked?" ”

Geng Jianqing: "No. ”

Chen Yi: "Do you have any doubts?" ”

Geng Jianqing: "There is, a spatula, a spatula for oil painting, because the victim majored in art in college, and in the course of our investigation, we found that the spatula and the murder weapon are very similar only in details, but the spatula cannot kill people, let alone cause stab wounds." ”

Hearing this, Chen Yi subconsciously flipped forward, and Geng Jianqing said after seeing it: "Don't look for it, Bi Xuelan doesn't know art, if you really want to lean up, only her daughter Zhou Yumeng is learning to paint, but she is not learning oil painting, if this is connected, it is too far-fetched." ”

Chen Yi's action paused, which was indeed very far-fetched.

"What do you think?" Geng Jianqing asked.

Chen Yi spoke: "There is no targeted occupation, there is no targeted fault, from the perspective of the motive of the crime, it can only be plunder." ”

Geng Jianqing: "No sexual assault, no financial loss, what to plunder?" ”

Chen Yi put down his hand in Chinese: "If only I knew, Uncle Geng, the geographical span is also a very important clue, which brings us a basis for writing the portrait of the murderer." ”

Geng Jianqing agreed: "That's right, the first murder is in the Imperial City, the second murder is in Ningcheng, and the third murder is in Yangcheng, we have not locked the suspect, so there is no possibility that the suspect escaped, he appeared in different cities, there must be a reason." ”

Chen Yi followed the train of thought and said: "For example, his profession needs to run all over the country. ”

Geng Jianqing nodded: "Well, there is also the crime cycle, there is a motive that drives him to kill people within two years, and when it is time to kill, he will look for targets in whichever city he happens to be in." ”

Chen Yi: "The search is based on young women, and if you narrow it down...... It seems that it can only be a behavioral trait. ”

Geng Jianqing: "Judging from the files, I have not found that the victims of the two cases of Emperor Cheng and Ningcheng have had the same or similar behavior. ”

Chen Yi: "We speculate that the murderer's motive is secretive, so it is certainly not so easy to find the motive, at least on the surface, it cannot be seen, and it needs to be analyzed at a deep level. ”

Geng Jianqing: "After your detachment has fully investigated the current case, we will discuss this issue again, and if there are major discoveries in the process, call me at any time, by the way, there is one more thing." ”

Chen Yi: "Uncle Geng wants to say...... Is the Imperial City case the first case? ”

Geng Jianqing's eyes showed appreciation: "That's right, this matter needs to be implemented, until the murderer is caught, we can't know how many people he killed." ”

(End of chapter)