At 3:40 p.m., the vehicle drove into the Jiangcheng City Bureau and stopped next to the stairs in front of the building.

There are already many people waiting in advance, most of them are people from the Jiangcheng Criminal Investigation Detachment, and Zhao Qiming is among them.

Standing at the forefront is Ge Quanshan.

The provincial department sent a special team to investigate the big case, although it was not similar to the Qincha in ancient times, but it must also be taken seriously, or at least come out to meet it.

What's more, Fang Songping made it clear that Chen Yi can mobilize all police resources in Jiangcheng, and he still has great power.

That is to say, before the conclusion of this case, as long as the investigation work related to this case, the whole Jiangcheng must cooperate with the task force, and there must be no reason to refuse.

Chen Yi and the others got out of the car.

"Team Leader Chen, welcome to Jiangcheng, everything is ready and ready to carry out the investigation."

Ge Quanshan stepped forward and shook hands with Chen Yi.

Chen Yi said politely: "Hello Ge Ju, I am a newcomer, and I hope that with our joint efforts, this case can be solved as soon as possible." ”

"May I ask who is Team Zhao?"

Hearing this, Zhao Qiming hurriedly stepped forward: "Hello Team Leader Chen, I'm Zhao Qiming." ”

While speaking, he couldn't help but look at Chen Yi carefully, the other party looked a lot younger than he imagined, and it was really as rumored that there was a young genius in Yangcheng who solved the case, and the provincial department also valued it very much.

The fact that such a big case was handed over to the other party shows trust.

Chen Yi smiled slightly: "Team Zhao, they are all our own people, we don't have to be polite, let's just look at the file." ”

Seeing this, everyone looked at each other, and this young deputy detachment leader was really resolute.

Zhao Qiming nodded: "No problem, we have all sorted it out yesterday, and there is nothing missing." ”

"To the conference room, or to the case hall?"

Chen Yi: "The conference room, is there a shortage of participants?" ”

Zhao Qiming: "Yes, the identity of the deceased has been confirmed, I have arranged for investigators to visit, call back at any time, do you need to call back?" ”

Chen Yi: "That's not necessary, let's go." ”

Zhao Qiming: "Okay. ”

At this time, Ge Quanshan spoke: "Team Leader Chen, didn't you eat lunch?" I'll let the restaurant do a little bit and send it to the conference room. ”

"The body is the capital of the case, you can talk while eating."

Chen Yi didn't refuse, nodded and said, "Okay, then it's going to be troublesome." ”

Ge Quanshan smiled: "Since it's your own person, what's polite." ”

After a brief chat, several people entered the city bureau and came directly to the conference room.

In a short time, the place was already full of police officers, each holding a small notebook, ready to record the content of the meeting and the next step of the investigation.

"Team Leader Chen, the files are all here, you can take a look first."

Zhao Qiming brought a stack of documents and put them in front of Chen Yi.

"Okay, please wait."

Chen Yi distributed the dossier to each of them, exchanged them with each other and began to study them carefully.

The conference room was quiet, Zhao Qiming and they were not in a hurry, they waited quietly, this process took a long time.

During this period, a simple meal was delivered from the restaurant, and Chen Yi and the four of them watched while eating.

With the passage of time, Chen Yi finally has a very intuitive understanding of the serial murder case more than ten years ago.

When the crime was committed, where the crime was committed, how the crime was committed, the victim's occupation, interpersonal relationships, etc.

He didn't look at the recent case for the first time, but started from the beginning, starting with the first murder case fifteen years ago.

Doing so prevents preconceptions and facilitates intuitive judgment.

The police cannot rely on intuition in handling cases, but they have a certain reference, especially for extremely experienced criminal police.

Chen Yi has such experience, and for the most part, he trusts his instincts.

Intuition is not guesswork, but the result of experience and knee-jerk inference.

The first deceased, died fifteen years ago.

Name: Sun Jianli, age 37, farmer.

The second deceased, died fourteen years ago.

Name: Tian Youwei, 41 years old, is a history teacher at a vocational high school.

The third deceased, died thirteen years ago.

Name: Liang Wu, 42 years old, professional sanda training coach.

The fourth deceased, died twelve years ago.

Name: Huang Baoxu, 43 years old, doctor at the occupational clinic.

The fifth deceased, died eleven years ago.

Name: Yao Jing, 38 years old, occupation of a factory laboratory technician.

The time of death is not a standard year, some are separated by three months, some are separated by more than six months, and the average is one year.

Finally, there is the latest victim ten years later, named Cao Yuning, 36 years old, and a university psychology professor by profession.

There were six dead in total, and they died in the same way, but they had a variety of occupations.

The only known commonality is that they are of the same gender and barely close in age.

According to the investigation, the five who died more than ten years ago have no relatives and friends with each other, and they can't even find mutual friends, so it can be said that there is no connection.

The file was very long, and after more than an hour, Chen Yi closed the file and habitually took out his cigarette case.

Lighting a cigarette, he turned his head to look at Zhao Qiming.

"Captain Zhao was ...... Involved in the investigation of this case? ”

He didn't see Zhao Qiming's name on the file, so he needed to ask.

Zhao Qiming nodded: "Yes, Team Leader Chen, participated, followed the investigation of the Kong team, and this investigation was five or six years." ”

Chen Yi: "I read that the file mentioned that the anesthetic used by the murderer was a medical anesthetic, so after the investigation reached an impasse, Captain Kong gathered all the police forces that could be gathered to carry out a comprehensive investigation of the channels of anesthetics. ”

"In addition to Jiangcheng, the surrounding cities have not been spared, and even Yangcheng has been checked, and the trajectory is all over Dongzhou, and there is no harvest in the end."

Zhao Qiming: "Yes, we were running outside for several months in a row. ”

"Narcotics are strictly controlled by the state, and it is impossible to sell them to individuals, so the Kong team has always wanted to find out how the murderer got it, and even if it is stolen, there should be a record."

"The dose that can kill five people is not small."

Chen Yi was silent for a while and said, "Before resigning, what was Captain Kong's last suspicion?" ”

Zhao Qiming: "Doctor." ”

"Syringes, anesthetics, no source can be found, and the easiest thing to do is that the doctor is very likely."

"What does Team Leader Chen think?"

Chen Yi looked at the file in front of him and said, "After reading the file, my judgment is the same as that of Captain Kong, and it is indeed possible that he is a doctor." ”

"But in Huang Baoxu's interpersonal relationships, all the friends related to medicine have been ruled out of suspicion, right?"

Huang Baoxu is the doctor of the clinic, this is a suspected breakthrough, Kong Hanyong did not let it go back then, it can really be said that everything that can be checked has been checked.

Zhao Qiming nodded: "Yes, I didn't find anyone who had the conditions and time to commit the crime." ”

Chen Yi took a puff of cigarette and said, "What about this case, I see that the weather forecast has a light rain at the time of the incident, does it have a big impact on the scene investigation?" ”

This case has just happened, and a lot of things have not been sorted out, so he needs to ask directly.

Zhao Qiming replied: "The very small drizzle can't even wash the blood stains on the deceased's face, and it doesn't have a great impact on the on-site investigation." ”

Chen Yi: "How did the murderer go to the scene of the crime?" ”

Zhao Qiming said: "There is no residential area around the crime scene, it must have been driven to it, but there were only footprints at the scene and no rut marks were found. ”

"This point, from the back and forth of the footprints on the scene, can be used as a basis for judgment."

Chen Yi nodded: "Understood." ”

"It seems that the murderer considered that tire prints could reveal vehicle information, a very smart person, but he didn't care about footprints."

"Cao Yuning weighs 160 pounds, and the asphalt road is more than 100 meters away from the scene of the crime, so it is not easy to transport manpower there."

Zhao Qiming spoke: "Yes, so we judged that the murderer should be a man, and the footprints left at the scene are also corroboration, because the soil around the crime scene is relatively soft, and the yardage can only be said to be about forty-three." ”

Chen Yi: "More than ten years ago, the murderer also left footprints, the yardage is forty-two, and the soft soil will increase the error of the footprint data, so ...... Is this a person? ”

This question made Zhao Qiming hesitate: "Judging from the footprints, it is like this, but it cannot be 100% certain, but the murderer's modus operandi is highly consistent with that of more than ten years ago, and it is very likely that the murderer is a person." ”

"What does Team Leader Chen mean by directly merging cases?"

Chen Yi didn't answer immediately, and now no one dares to say that it was the same murderer.

When the meeting was held in the provincial hall in the morning, Fang Songping only said that the murderer was likely to be the same person, but he could not be sure, the only thing that could be determined was that there must be a connection between the two cases.

Imitation is also one of the connections.

The purpose of sending a special case team here is to find out the connection, and if the two murderers did it, they might be able to catch it.

At this time, Shi Xin, who was still browsing the file, looked at it and said: "Six deceased, six mirrors, each mirror style and size is different, indicating that the key point is not on the mirror, as long as it is a mirror." ”

"The murderer's purpose is to let the victim see the whole process of his murder clearly, what kind of psychology is this?"

"To be honest, I smell anger in it."

"The murderer is angry, right? Is it possible that vendetta is possible? But it doesn't feel reasonable to have a grudge against so many people, and there are ten years in between. ”

"Ten years ago, Cao Yuning was only in his twenties."

Chen Yi: "I agree with He Deputy Zhi's words, and I feel it too." ”

"The targets of serial murders are all middle-aged men, which is indeed quite rare, and the possibility of hatred cannot be ruled out, but Captain Kong did not find contact back then."

"If you have a grudge against so many people, how can you not find out at all? Is there no intersection between each other? ”

"In other words, the murderer has a grudge against a type of person, and the motive for the crime comes from the venting of psychological substitution."

"In that case, what would be the point of anger?"

"I handled a case in Yangcheng last year, and the murderer's anger came from the psychological shadow brought by his ex-girlfriend and transferred to the victim."

"In this matter, an analysis of what the victims have in common can give an answer."

"But I don't see any effective common ground from the six deceased people for the time being, and if it's a middle-aged man, the scope is too large."

"This should be the reason why Captain Kong gave up the investigation of the common points of the victims."

Zhao Qiming nodded: "Yes, we can't find common ground, we can only check according to the clues left at the scene, but with little success." ”

"In this case, I am afraid that normal criminal investigation methods will not be able to bring progress."

"What does Team Leader Chen mean, how should we check next?"

Chen Yi leaned back in his chair, slowly exhaled a puff of smoke, and said: "New cases are always easier to investigate than old cases, so naturally Cao Yuning should be investigated first." ”

"In three days, find out everything about Cao Yuning, and then look at it."

I have to say that in the past five years, Kong Hanyong's investigation has been very wide, and he has hardly let go of any possibility.

For example, the source of anesthetics, the source of mirrors, the source of shovels, and even a certain range of footprint comparisons have been carried out.

The scope of the comparison comes from the possible psychological safety zone of the murderer, and the target occupation is a doctor or related worker.

It's a pity that there are a lot of men in forty-two yards, this way is tantamount to looking for a needle in a haystack, and there is no way to do it, indirectly seeing that Kong Hanyong was already very anxious at that time, so anxious that he lost his original patience and rushed to the doctor.

In this case, there is no need to rush to restart the investigation of the case of the year, and you can first clarify the case in front of you, and then you may be able to gain something.

More than ten years ago, the victim had no contact, and now there is one more, maybe there is a connection?

Zhao Qiming has no opinion: "Okay, everything is subject to Team Leader Chen's arrangement, so now?" ”

Chen Yi thought for a while and said, "Captain Zhao, save the police force, it's enough for a few of us to check Cao Yuning." ”

"In the next few days, let the rest of the criminal investigation detachment find out the current family situation of the five deceased people more than ten years ago, including their former addresses, the current living conditions of their wives and children, and their current addresses."

"When we reopen the investigation, we can start directly."

"Multi-directional action, as fast as possible, no one can figure out the psychology of a serial killer, and it is impossible to judge whether the murderer will continue to kill and when to kill."

"Today? Tomorrow? This year? Or next year? Can't gamble. ”

Chen Yi's words made Zhao Qiming's expression solemn, and he nodded and said, "Okay, Team Leader Chen, I understand, arrange it immediately." ”

Chen Yi snorted and stood up at this moment: "I'll go and take a look at the corpse, what is the chief forensic doctor called?" ”

Zhao Qiming: "He Zhinian." ”

"Who, Xiao Li, inform Forensic Doctor He to prepare, and then bring Team Leader Chen over."

The police officer who was named immediately stood up: "Yes, Team Zhao." ”

……

Forensic Doctor's Office.

Chen Yi and the four walked in, and the forensic assistant had already placed the body on the forensic table and stood aside.

Qin Fei walked at the back, this time his performance was much better than last time, he couldn't be said to be very calm, at least there was no abnormality on the surface, and the corpse that had been forensically treated didn't look so strong on the surface.

"Team Leader Chen."

He Zhinian nodded at Chen Yi, with curiosity and surprise in his eyes.

Curious about what the guy who can solve multiple murders and get promoted quickly looks like, he is surprised by the age of the other party.

This seems to have become a rule, since Chen Yi was promoted to the deputy captain of the criminal investigation detachment of the Yangcheng City Bureau, every time he meets a new person, he will be surprised by his youth.

"Hello, Forensic Doctor."

Chen Yi nodded, then stepped forward, his eyes on the corpse.

Cao Yuning's face had been cleaned very clean, he was lying there quietly, his eyes were closed, and his face still had the expression before he died: horror.

Whoever is buried in the soil, and then watches his head smashed open, blood flowing down his forehead and all over his face, that kind of visual horror is unbearable.

Chen Yi looked at it for a while, bent down and got closer, only a few centimeters away from Cao Yuning.

This action surprised He Zhinian, such a young criminal policeman faced the corpse at close range without any emotional fluctuations, which shows the strength of his psychological quality.

Not to mention the young criminal police, even many old criminal policemen are now only investigating the case according to the autopsy report, and they have a three-point awe for the corpse.

After all, it is the work of forensic doctors, and in most cases, the criminal police just meet at the scene of the crime.

"How do you feel like he's laughing?"

The sudden words made He Zhinian stunned, and when he stepped forward behind him.

"Laugh? No way? ”

Shi Xin covered his nose lightly, glanced at it and stepped back again, he was not afraid of the dead, but he couldn't be as ancient as Chen Yi, as if he was just facing a sculpture.

On the other hand, Zhuo Yun and Qin Fei were a little shocked.

Laugh?

The victim is laughing?

Don't make trouble, Team Chen, who can laugh in that situation, it's good if you don't cry.

Chen Yi straightened up: "Maybe it's wrong, the expression is a little rich, and it seems to be a little different from the five victims more than ten years ago." ”

With that, he stepped over to the corpse and stared at the wound for a moment.

"Why do you have to put a mirror, why do you have to bury it?"

Chen Yi muttered to himself.

When is it new: "What do you say?" ”

Chen Yi's voice was a little louder: "Judging from the investigation results more than ten years ago, the murderer's anti-reconnaissance ability is very strong, and the body and the scene did not leave any clues, but only footprints. ”

"Even if the suspect can't be found through footprints, it's one of the circumstantial evidences, and it's easier to avoid it."

"Whether the murderer is too confident or doesn't matter, he still wants to tell the police: That's right, it's me, I'm just going to kill them, come to arrest me, follow the footprints to find me."

Hearing this, when was the new fox suspicious, why did he suddenly say it so mysteriously.

Chen Yi continued to speak: "Actually, my first reaction was histrionic personality disorder, but this crime cycle is not quite right. ”

Histrionic personality disorder, also known as attention-seeking personality disorder, is characterized by an overly emotional personality that uses exaggerated words and actions to attract the attention of others.

This method of killing is indeed very much like a performance, showing off one's achievements, like showing off a work of art.

People with histrionic personality disorder are extremely emotional, and at the same time, they have the potential to be antisocial, so killing people is not a serious thing for these people, and they can do it if they want to.

The performance needs an audience, mapping the motive for killing, but the cycle is not quite right, ten years is a bit long, and five people have been killed in a row, unless something happens in between.

For example, if you are injured, you are in prison, you are married, you have children...... And so on and so forth.

"Histrionic personality disorder?" When Xin thoughtfully, "It's a bit like it, but isn't there a little less choice of suburban audiences?" Oh yes, if you dig a pit and kill people in a crowded place in the city, it is difficult and dangerous, and if you bury it vertically, how long will it take. ”

Chen Yi didn't respond, he walked around the corpse twice with his chin in his hand, and then spoke: "What forensic doctor, can you judge the fatal injury?" ”

He Zhinian replied: "Anyway, it's not the first time, the murderer is not in a hurry to let the victim die, and seems to enjoy the process." ”

This sentence made Zhuo Yun and several people scold in their hearts: What a perverted madman.

Chen Yi shook his head: "No, there is another possibility, the murderer is to let the victim enjoy the process." ”

He Zhinian was surprised: "Isn't that what it means?" ”

"The process of the murderer's enjoyment is the process of the victim's suffering."

Chen Yi: "Maybe it's not the same thing, the murderer doesn't enjoy the process, he just wants the victim to go through the process." ”

"If you think about it from this point of view, it fits the characteristics of vendetta."

He Zhinian was silent.

More than ten years ago, all the possibilities of this case were considered, but after the targeted investigation, there was no breakthrough.

At this time, Shi Xin said: "Team Leader Chen, if it is a vendetta, the relationship between them must be very close, and it should not be impossible to find out." ”

Chen Yi glanced at him and said, "Just talking about theoretical possibilities, I'll give you a simple example." ”

"Zhang San and Li Si are strangers, and by coincidence, the two of them hiked the mountain and saw a hundred yuan at the same time."

"For a hundred yuan, Zhang San and Li Si had an argument, and then Zhang San pushed Li Si off the cliff."

"But Li Si didn't die, and after he recovered from his injuries, he sought revenge on Zhang San and killed him."

"In this case, how to check interpersonal relationships."

When is it new: "uh......"

He understood what Chen Yi meant, and this situation was indeed theoretically possible.

However, there is a feud with six people at the same time, and the probability is almost negligible.

Chen Yi continued: "If Zhang San is regarded as five or six people, and the murderer is Li Si, can't you explain the current situation? ”

"Don't think about how low the probability is, no matter how low it is, it's not zero."

Shi Xin frowned: "If this is really the case, then it will be difficult." ”

According to the example given by Chen Yi, divergent thinking can be extended to a variety of scenarios, the core of which is that several people do not know each other, but they get together.

Then, there was a series of murders.

It's hard to find, it's very hard to find, it's no different from looking for a needle in a haystack.

Chen Yi didn't say anything more, waved his hand and said, "Let's go, it's just a possibility, let's see what clues Cao Yuning can have." ”

"See his family first."

Several people left the forensic office.

Zhao Qiming was arranging for police officers to investigate the fifth family more than ten years ago, and after it was over, he took Chen Yi and others to Cao Yuning's house.

It's almost time for dinner, and it's not appropriate to come to the door, but there's no need to pay attention to these details now.

What's more, Cao Yuning is dead, how can his family still eat.

On the way, Zhao Qiming learned about Chen Yi's assumptions about Zhang San and Li Si, which is a new possibility, that is, the probability of occurrence is relatively small, and it is quite difficult to investigate.

However, it is easier than a random killing antisocial personality, and at least there is some basis for the police to infer it.

"How is this Cao Yuning's wind review?" Inside the car, Chen Yi asked.

Zhao Qiming said: "What we know so far is that it is not bad, I stayed in school after graduating from graduate school, and later I took the doctoral examination, and the lecture style is unique, and the students are very willing to listen." ”

"His electives are almost full."

Chen Yi nodded slightly and sighed, "Hey, it's a pity." ”

(End of chapter)