"What are the two of you?" Ren Qiuling took a monk, a lady who covered half of her face with her hair, and stood in front of two old men who were fighting, "My name is Ren Qiuling." ”

The two old men hurriedly stretched out their hands: "It's okay, it's okay, we often fight and play." ”

When you walk out of the airport, you are already familiar with it. The two old men were both criminal investigators who investigated the Zitong serial case back then, and they are very familiar with the basic situation, and they are now retired. The taller old man's surname is Wei, and he is called Lao Weitou; The shorter old man's surname is Xu, and he is called Lao Xutou.

In Lao Wei Tou's car, Lao Wei Tou introduced: "The person who committed this case is definitely not a martial arts master, or a demobilized soldier. His way of entering the victim's room is by sliding the door, and he never breaks down; Starting with the first victim, several victims had defensive injuries on their palms. ”

The pictures of this case came to Ren Qiuling's mind, and many pictures had knife wounds on the palms.

"No, no, no," the woman stretched out her hands against the blade, her palms split.

Back at about 9 a.m. on May 22, 2002, the female nurse Zhong bought vegetables from the vegetable market and went home. She put the food under the tap and rinsed it, wondering what her newlywed husband liked to eat.

At that moment, a dark shadow slipped out of her room and listened. The sound of water was accompanied by Zhong's muttering.

In the black shadow's right hand, the folding knife hung down again.

The black shadow flashed into the house, and Zhong's screams rang out.

In this case, in order to survive, Zhong held his breath and pretended to be dead to hide from the murderer. Although she was stabbed eight times, she still called the police and insisted on going to the hospital before she died. She had seen the murderer, but because of her injuries, she died soon after, and she didn't have time to say anything. Old Wei said with regret.

Bai Xinruo let out a heavy sigh.

"Who are these two?" Old Xu Tou cautiously asked for many questions.

Ren Qiuling said: "These two are my assistants - I think Wei Lao is right, the murderer has been committing crimes for more than ten years, and he has not improved at all, but has shown a certain degree of degradation. I think this person has some form of disability, or a chronic disease, and his physical strength is weaker than that of the average man. Although he had a knife in his hand, killing a woman was still a difficult task for him. ”

"It's hard to say!" Lao Wei Tou said: "After 14 years of committing the crime, no eyewitness has been found. What does this mean? It means that he doesn't bother to look at him, and even if you see him in the crowd, you won't notice him. I remember a very reasonable piece of the profile back then, that is, the height of the suspect was about 1.68 to 1.76 meters. This profile is based on the traces of the scene, including a case in which he stabbed the victim to death on the bed and bent over to cut the victim's throat - note that it was cut, and only the man in this range was more comfortable with bending over and holding one hand on the victim's head and cutting the victim's throat with the other. ”

Ren Qiuling knew that in order to avoid misleading the police when profiling the case, she would fluctuate up and down on the specific values to ensure the accuracy of the profiling. In other words, in the eyes of the profiler at the time, 1.72 meters was a more likely height.

The first time the murderer committed the crime was eight or eight years old, and if he was in a southern city at that time, 1.72 meters was relatively tall, but in Shaanxi, such a height was actually very ordinary.

Ordinary appearance, ordinary height, this person should have no obvious characteristics that people can remember at a glance.

In the American Forest Trail Killer case, the profiler deduced that this person suffered from some kind of disability according to the characteristics of the perpetrator who killed people in the depths of the jungle and used a surprise attack to bring down the victim, and he usually looked like an ordinary person, but as soon as he spoke, this disability would be exposed, and it was likely that this person suffered from stuttering.

As a result, when Lin Jing's killer was caught, he not only stuttered, but also had a very ugly big yellow tooth.

In terms of modus operandi, the offender in this case never tried to convince the victim to open the door - the so-called sliding door is a police term for the suspect to enter the door while the victim is open. His method of killing has not progressed much, that is, he frantically stabbed with a knife until the victim died.

So, the person may have some kind of disability that prevents him from exercising his physical abilities.

Ren Qiuling's first thought is the shoulder joint falling off, this kind of injury mainly appears in infancy - many adults will jerk the child's arm when hitting the child, causing the child's shoulder joint to fall off, if it is not dealt with in time, the child's hand will have no strength at all, but can write normally.

However, the consequence of the loss of the shoulder joint is that the two hands are one large and one small, and the lost arm can only rest on the waist, which is an obvious feature.

There are also chronic diseases that can cause the killer to have very low physical energy, such as tuberculosis, congenital heart disease, and so on. But these diseases can cause the killer to get thinner and thinner - the murderer in this case should be of medium build, neither fat nor thin.

Therefore, this disability should have two characteristics: it cannot be seen from the outside; It can cause the killer to have a decrease in his motor ability.

Lao Xu Tou said: "Six years have passed since the last case, the murderer has not committed another crime, he should be dead." I don't think this case will ever come to a conclusion. ”

Ren Qiuling felt that Lao Xu Tou was right.

After settling in the hotel, the first thing Ren Qiuling had to do was to take a look at the scene. Time has passed, and the Zitong City has undergone earth-shaking changes, and it is impossible to find the crime scene of the year.

Old Wei Tou found an old-fashioned courtyard - it was certainly not the crime scene of the year, but this courtyard was very much like the scene of the first crime in '88.

Ren Qiuling conducted a live simulation. For the profiler, the purpose of the live simulation is to go into the hearts of the victim and the offender to see why the victim became the victim and why the offender picked the victim. So, such a scene is enough.

Ren Qiuling stood at the door with a chatter and read: "I'm a criminal now, the door is open, how can I tell if there is anyone inside?" ”

Lao Xu Tou said to Lao Wei: "Do you think she can solve the case?" ”

Old Wei Tou said with disdain: "Here we go again!" That criminal is not a clever guy, to be honest, I think the reason why the case was not solved back then was because there was a problem with the direction of detection. As long as you find the right direction to solve the case, that case is definitely very simple. ”

Lao Xu Tou did not laugh at Lao Wei Tou this time, but said: "Think about it, so many manpower and material resources were used to collect blood samples and fingerprints on the permanent population of Baiyin City. One brother also collapsed from exhaustion, and the two brothers tried to save trouble and sent their blood samples and fingerprints to prison as someone else's, and such strict measures did not find out the real culprit - just her? At the last sentence, Lao Xu lowered his voice.

Old Wei Tou sighed and squatted on the ground without saying a word.

Lao Xu Tou also squatted down, took out a cigarette and touched Lao Wei's shoulder in a friendly way, "How is it?" Got one? ”

Old Wei Tou suddenly got angry and said: "Smoking, smoking, smoking, you have a big smoking gun!" ”

Old Xu Tou smiled, "The dog bites Lu Dongbin!" ”

Ren Qiuling walked out of the door with a disappointed face, and the two old men stood up together to greet them and said, "How is it?" What did you find? ”

Ren Qiuling sighed and said: "There are indeed discoveries, but it is not enough to make a profile." ”

The two old men are also experienced criminal investigators, and they know that solving the case is not something that can be done with a pat on the head, so they can't be in a hurry, but instead comforted Ren Qiuling and told her not to worry.

Ren Qiuling is now basically sure that the murderer did regard himself as a hero when he committed the first case, which is the so-called heroic killing.

After killing the victim and before leaving the scene, the murderer washed his hands clean, because in his opinion, the blood of this beautiful woman was dirty. He didn't disguise the scene, but also because he felt that he was doing chivalrous deeds and cleaning up the cancer of society.

In the eyes of the murderer, these beautiful women are guilty and deserve to die! Of course, we think the opposite, and he's the only damn one.

It's a pity that this discovery has little effect on the detection, and it can only be said that Ren Qiuling is stepping into the inner world of criminals step by step. It's still impossible to make a profile based on this.

Old Wei Tou asked, "What should we do now?" ”

Ren Qiuling said: "Let's go back to the hotel first, there are still some things to check." ”

Lao Wei started the car with a smile on the corner of his mouth, and after everyone got in the car and sat down, he said while driving: "I heard that there are two schools of profiling, one academic and one genius. In solving cases, the academic school can't do the genius school. However, during the court trial, it is usually difficult for the genius faction to convict the criminal with the evidence collected, and the role of the genius faction is not as great as that of the academic faction. However, I think Ms. Ren's style of handling cases seems to be a new genre! ”

Ren Qiuling, who was thinking, asked casually, "What faction?" ”

Old Wei Tou blurted out: "Old man! He said angrily: "I have never seen such a case, ah, come to the scene to recite a spell, and go back to the hotel." There is no spirit of hardship and hard work at all, don't do criminal investigation as soon as possible! Go home and take the kids, buy groceries or something. Go back, go back! ”

Old Wei Tou is a senior, and he is indeed qualified to roar these words. Although Ren Qiuling was also angry, he still respected his seniors, and when he finished yelling, he explained: "I just thought of one thing: you said that the number of knife wounds left by the murderer on all the victims is quite auspicious, thirty-six knives, twenty-six knives, sixteen knives, eight knives; On the other hand, the murderer carefully selected the victims, and all the victims have a lot in common, such as their appearance is a goose egg face, for example, they are all employees of the copper company or their families. So, could it be that the date of his murder was also carefully chosen? If this correlation is found, it may be the breakthrough of the case! Well, you can only look it up on your computer, right? ”

Old Wei was still angry, but there was obviously a look of shame on his purple face. It's just that he doesn't have the habit of apologizing, so he pretends not to be angry, and wants to fool the past like this.