"We're looking into serial murders?" When it comes to seeking Mr. Lu's help, this case should involve some special circumstances.

Li Jing handed me the information and said: "According to the information that came over there, there is indeed no case where the modus operandi is relatively similar, and in each case, the murderer took away the items on the victim's body, at first a few cases were not obvious, basically the police identified it as a robbery and murder, but it seems that the murderer has a strong sense of conceit, he is very dissatisfied with the police did not disclose his crime, or his behavior did not meet the sense of panic he expected to create, so his later cases are a lot perverted." In the previous case, he only took away the ornaments on the victim's body, and in the later case, he directly cut off or shaved off the victim's hair, so as to attract the attention of the police, and began to look through the previous files, and found that the common point in each case is that the murderer seems to have a special preference for the appearance of the victim. ”

I took the information, looked at the summary above and read: "In the related cases that have been temporarily found, the victims are basically between 20 and 35 years old, all of them are long-haired women, in the early cases, the murderer took all the ornaments on the victim's body after committing the crime, and in the later cases, the murderer would cut off or shave off the victim's hair after committing the crime, tie it into a knot, and put it in the victim's hands. It feels so perverted. I pouted.

"Now the murderer's murder cycle has been shortened, the original case was ten years ago, and there was a year between the second case, but the reason why the recent case can arouse the association of the police, in addition to the radical reason for the modus operandi, is that the suspect's crime cycle has been gradually shortened, and the interval between the last case and the previous case is only less than two months, so before the murderer commits the crime again, our task is to make a profile for the suspect and help the police arrest him as soon as possible." Li Jing also took out his own information.

"Is it possible to be a copycat?" Thinking of the several cases I dealt with before, even if it wasn't a copy, in a perverted homicide case, although the reasons for the crime were different. However, the murderous procedures are basically similar, such as the preference for people with certain physical characteristics, and the means of committing crimes, which are all traceable. If you compare it with the previous murderers in the database, in addition to finding the similarities in the methods of committing the crime, you can also see if there will be any admirers around these imitators, such as when visiting prisons, and continue to commit murders outside according to the murderer's ideas. Or the previous case was not committed by one person, and there are other murderers who have been arrested and brought to justice who are still at large and continue to commit crimes.

I told Li Jing what I thought, and Li Jing looked at me with appreciation in his eyes: "Sure enough, I didn't run out to exercise by myself in vain." I also have this idea, but L City is a relatively famous tourist city in recent years, and there have been no similar cases before, so I have asked Shi Hao in advance to help me find similar cases across the country in the database, and if there are records in other cities, they can be sent to us as a reference. ”

"Speaking of tourist cities." I had another thought, "If you bypass the previous cycle of crime, which was one year." It is possible that the suspect is not a local, so there is no possibility that he will commit the crime more than once a year, or he may be someone who has been away for a long time and only comes back on a specific date every year. But what induces him to come back or induce him to go past is the key to finding him. ”

"That's right." Li Jing nodded in agreement, "It's not so much that it's inconvenient to commit crimes, but it may be that there are some reasons that stimulate him to commit crimes." First of all, let's talk about the modus operandi, committing crimes continuously without being caught by the police, indicating that they have a certain anti-investigation ability and belong to high-IQ criminals. His strange behavior after committing the murder is judged according to D**. The murderer's table echoes the scope of mental disorders, but is different from general mental retardation and has a greater risk. ”

"What is D**?" I looked at Li Jing suspiciously and asked.

Li Jing looked away from the information in his hand, looked at me and explained, "The American Psychiatric Association has tried to classify the prudence disorder specifically. A statistical manual of mental disorder diagnosis developed to interpret and diagnose specific mental disorders. It categorizes a series of mental disorders, including bizarre, exaggerated, harmful, and slightly abnormal, and classifies nearly 400 types of discreet disorders. It is a useful reference for mental health practitioners to diagnose patients and for the compensation for injuries caused by these people with mental disorders. ”

I heard that according to Li Jing's explanation, I was still a little ignorant: "Is it a manual for assessing the suspect's mental state?" ”

Li Jing thought for a moment: "Not exactly. Because this manual will also be used as a reference for the diagnosis of many people with mental disorders after they have committed acts that harm society, and the basic diagnosis made by GuòD** can also be used as evidence in a series of subsequent judicial procedures, including the assessment of the suspect's ability to stand trial and the mental state at the time of the violation. It can even affect the assessment of victims. ”

"Will it affect the assessment of victims?" I repeated Li Jing's last sentence with some concern, "Isn't this unfair to the victim at all, as long as the victim can prove that he has a mental disorder, he can escape the punishment he needs to accept and escape the punishment of the law, then who will compensate the victim and his family for the injuries they have suffered?" That will allow more people to do whatever they want in the same way, hurt society, and finally get away with it. ”

Li Jing was a little excited when he saw my feelings, patted my arm and comforted: "Although it is true that some people have escaped the punishment of the law through this loophole, but in general, D** has a very strict set of diagnostic procedures, and not all murderers will be diagnosed with mental disorders. And there is not only one doctor who diagnosed him, the whole procedure will be very rigorous, although there will be fish that slip through the net, but now combined with scientific and technological means, the whole diagnosis process is very cautious. ”

"Oh." I'm still a little depressed.

As if to alleviate the unpleasant atmosphere just now, Li Jing suddenly smiled. I looked at him curiously, "Is there anything funny?" ”

Li Jing shook his head and said, "No, I just suddenly remembered that when I was studying in the past, the teacher of our course said that nearly half of the total population of the United States can meet the diagnosis in the Mental Disorder Statistical Manual at some point in their lives." However, although they all meet the characteristics of the diagnosis, most of them can be treated or quickly recovered with the care and help of those around them, and many of them do not know that they have suffered from a mental disorder. Even people who think they have always been mentally healthy are not a few. In other words, Xiaozhi, maybe at some point in the past, maybe you had similar symptoms. ”

"No, it won't." I hit Li Jing a little.

Li Jing glanced at me with slanted eyes, looking disbelieving: "You don't know, you don't have to!" ”

I interrupted him with some dissatisfaction: "Then tell me why." If the reasons are valid, maybe I'll consider admitting it. ’

Li Jing looked at me funny: "Is there anything to admit this?" Most people are mentally handicapped in time, but that doesn't stop them from making the right choices, except for behaving strangely. It will not cause any harm to the surrounding society, and after this stage, it will return to the cognition of ordinary people. This kind of bizarre behavior of ordinary people is basically due to some negative influences in their lives, such as the death of a loved one, or the departure of a partner, or the failure of a career. Basically, after a painful life, one will erupt in one way or another, but with proper guidance, people can quickly recover from the chaos. Those who cannot recover, and then harm the society, in addition to the ideological extremism, and the early education deficits, can not be ruled out as functional disorders of the patient, such as cognitive deficits. However, most people's cognitive impairment occurs in the trauma or disaster of daily life, such as the case of the mercenary we came into contact with before, who suffered from traumatic stress disorder after the war. So think back to whether you've ever been in a frustration or have you ever been in a state of extreme behavior. If you look at your own table against that manual, you may find that you have indeed had signs of mental disorders at some point. ”

I thought about it carefully, didn't I seem to have encountered too many unpleasant things, particularly big disasters? I didn't seem to think about anything, but when I thought about it too much, my head hurt and I seemed to have a problem, and I gently rubbed my temple with my right hand.

"Airsickness?" Li Jing's voice came from the side, and it was a little vague. I didn't want to admit that I was overusing my brain, so I nodded slightly. But no matter how much you massage your temples, you can't relieve this damn headache, maybe I've been too tired lately. And Li Jing's voice seemed to be getting more and more unclear, and I looked at him suspiciously, trying to figure out what he was talking about. But the moment I overdid it, I felt like the whole world was shaking, and I didn't know anything before my eyes.

When I became conscious again, I felt as if I was covered with something, and when I tried to open my eyes and found that I was covered with a blanket, Li Jingzheng looked at me nervously: "Is it better?" He asked, looking at me.

I don't know how it was going though. But I still nodded habitually and smiled reluctantly: "What's wrong?" ”

"You just fainted." Li Jing concisely described the scene just now, to the effect that I fainted on the seat of the plane for some reason, Zou frowned and looked very uncomfortable, Li Jing helped me take a general look according to experience, and found that I may have been overworked recently and underrested, plus I read the information on the plane just now, and I got motion sickness. Just a little rest should be relieved.

"Thanks to you, otherwise I would have caused trouble for the flight attendants again." I embarrassedly rushed to the flight attendant who came to see me and smiled.

"This has happened before?" Li Jing asked me with a frown after hearing this.

"After the operation, I often get motion sickness, maybe I haven't recovered, right?" I pouted helplessly, "But I'm still completely alive and kicking up and down." ”

"You didn't take the Chinese medicine I prescribed to you?"

"It's so troublesome to cook, I haven't drunk it anymore for a long time, and it tastes so bad." The thought of that smell made me feel like my head was starting to hurt again.

Li Jing's hand that wanted to knock on my head didn't fall on my head in the end, "It's really disobedient." "I heard him whispering to me. I stuck out my tongue and didn't answer.

After getting off the plane, Li Jing did not take me directly to the scene of the crime as usual, but went directly to the accommodation, saying that he did not want to see me fall to the ground at the scene. "But the case will be heard, right?"

Li Jing shrugged his shoulders: "Originally, it was going to be tomorrow to really investigate the case, you have a good rest first, just take advantage of tonight when I read all the case files sent to me by Shi Hao and sort out the case." ”

Because I was so tired, I didn't refuse too much and just rested. When I woke up, it was five o'clock in the morning the next day, and seeing that it was still early, I took out the laptop I had with me, connected to the Internet, and clicked on the case file that Shi Hao sent us to sort out. The first case occurred in September 10 years ago, according to this inference. The suspect is not supposed to be a person who works in education, this time is generally the peak period of enrollment in the fall, whether it is Tuhe or the busiest day of the school, teachers or students and the like have no time to take care of other things. It is even more unlikely that there will be time to kill people or even elaborate the scene. Therefore, if the place where the victim was found is not the scene of the first crime, you can also rule out the possibility that the first crime scene is near the school, and the area around the school is more lively during this period of time, if someone shouts or calls for help, it will definitely attract the attention of Mr. Zhou, and dragging a corpse around the school will also be particularly conspicuous. Therefore, the possibility of committing crimes around the school was ruled out.

Similarly, as a tourist city, except for the Golden Week, September is not the peak tourist season in autumn, it is the convergence period of the two tourist peaks, and the flow of people is not particularly large, so as long as you are careful, you can still avoid everyone's eyes. I flipped back again, and the first four cases were indeed a year old, but the distance between the fifth and fourth cases was three years. explained that something must have affected the suspect and made him temporarily give up the murder, but after the fifth case, the frequency of murder was significantly higher, and when the sixth crime was committed, the murderer cut off the victim's hair, and then the interval between the seventh and sixth times was shortened to ten months, and then every time the murderer committed the crime, the timeline kept shrinking, and the last two cases were only less than two months apart. It seems that the murderer has lost his own feelings and behaviors, but apart from his obsession with the victim's appearance, he has not left too many clues. It's like showing off, but there's an indescribable sense of disobedience? I'm thinking. Suddenly, I heard a knock on the door, and unconsciously glanced at my watch, and found that it was almost nine o'clock, probably because Li Jing and others were in a hurry to urge me.

When I opened the door, it was Li Jing, and he glanced at me: "Awake?" Go downstairs for breakfast, and then go with me to the scene of the crime. ”

When going downstairs. Li Jing was waiting for me at the coffee bar of the inn. "Okay?" Li Jing motioned for me to sit on the opposite side of the booth.

I nodded, "Much better." I woke up at five o'clock this morning, and then I saw the case that has always been a good occurrence. If you hadn't knocked on the door, I wouldn't have known it would have been so late. ”

"Any ideas?" Li Jing took a sip of the local specialty of Feeling Snow Tea and asked me.

I roughly expressed my thoughts to Li Jing, and finally added: "I still think that this murderer is a local, or someone who has lived here for a long time, first of all, if you are a first-time traveler, you should not be so familiar with the overall environment, and the first time you commit a crime, you may show your feet." In addition, except for the last time, the time chosen by the suspect was not the peak tourist season, and he was too familiar with the local situation. And the last murder is probably because of the stimulation from the outside world, so the usual style has been changed. ”

Li Jing nodded: "Observe carefully." I am asking Shi Hao to investigate the source of the stimulus you just mentioned, and yesterday when we were analyzing mental disorders, we said that many people are cautious after experiencing great pain, and according to the time of the first crime, the suspect may have suffered a blow from July to September of that year. And judging from the victims of his murder, this blow must have come from the opposite sex, it may be a partner or a relative, but it is certain that the big source of stimulation is a long-haired woman. So I asked Shi Hao to check if any of the women who died during that period met this characteristic, and he hasn't replied to me yet. ”

I nodded and took a bite of the fruit sent by the inn: "He has stopped for three years without committing murder, could it be because something happened that prevented him from committing murder, so it will be more and more excessive to commit crimes again?" ”

Li Jing shook his head: "That's not right. It wasn't that he stopped him, but that during that time he was diverted by something, allowing him to hide his mental disorder and temporarily return to ordinary life. But three years later, it should have been a bigger blow that left him with cognitive deficits again. This blow may have been even harsher than before, so that he was completely out of order. It is likely that the reasons for the second blow will converge with the same cause of the first blow, and there will be a superimposed effect when stepping on him, and if the range of reasons for the first blow is too large, and the same disaster will be experienced three years later, it will not be difficult to narrow down the scope of our suspects. ’

"But." I whispered, "No matter what kind of blow, you can't lose the most basic conscience and humanity of human beings." Transferring one's own pain to someone else is simply too bad. "I took a big bite of the peach.

Li Jing didn't speak, knowing that after breakfast, when he was about to leave, he patted me lightly on the head: "So we should catch him quickly to stop him from doing more wrong things." (To be continued.) )