Small poor

Jing Yu nodded, he understood that they came to aid as consultants, even the captain of the Criminal Investigation Corps did not know their true ethnicity, and they used other identities when aiding foreign countries.

During the 10-minute journey, Pei Lanzhi spent a few seconds driving while changing his appearance. It would be very troublesome to go out to work with his original appearance.

When the two arrived at the scene, Wang Wenhai, the head of the Criminal Investigation Detachment, rushed over. A man in his thirties was sweating profusely, his face was vain after staying up late, and he was wearing plastic gloves. He had touched the corpse just now, so he couldn't talk to them Shaking hands, just greeted briefly: "Please come with me, both of you."

They crossed the isolation yellow line together. The weeds on the mountain behind the school were not cleared in time, the road conditions were extremely poor, and the footprints were messy.

When Jing Yu followed Pei Lanzhi into the scene, the rest of the policemen were looking at them with scrutiny.

Who made Jing Yu look like a college student who just graduated from school, and Pei Lanzhi's appearance has been disguised by magic, his long black hair is shortened, and hangs finely on his ear temples. Rong Hou is very similar to Shao Ran. His previous experience in the entertainment industry made him unable to use his original appearance normally. At this time, it is not as convenient as Shao Ran's face. Naturally, he also borrowed Shao Ran's identity.

When a policeman asked about his background, Pei Lanzhi was prepared and explained: "I major in criminal psychology, and I'm currently working in the Capital Public Security University. I occasionally come to the Criminal Investigation Brigade as a temporary consultant." After finishing speaking, he smiled lightly, "He's my assistant."

Jing Yu held the notebook with a serious face.

Wang Wenhai immediately added to him: "Professor of Criminal Psychology, Mr. Shao is young and promising. In the last serial murder case in the west, Mr. Shao wrote a profile for the suspect, and it was accurate."

Only then were the other police officers convinced, their eyes filled with admiration.

Pei Lanzhi, who was wearing Shao Ran's face, knew that Jing Yu didn't like to socialize with others and only wanted to solve the case, so he first went to see the corpses cleaned up by the police. He was wearing white gloves, holding his breath, and picked out the severed finger, signaling Jing Yu.

Jing Yu wasn't too afraid of bloody corpses. After all, he had seen Lu Feng's head and intestines run away in groups. This motionless corpse was nothing special. "It was chopped with a hatchet." Nothing special, the internal affairs of the human race."

Pei Lanzhi nodded, this case will not be handed over to special criminal investigation, but they can still assist from the side, "There are maggots, it is estimated that the time of death has been around ten days."

Wang Wenhai said: "It will take some time for us to take it back for DNA testing. From the beginning of last year to the present, there have been four knife stabbing cases. The first two cases occurred in September last year, and the two cases happened in the same month this year. "

The group of them returned to the Criminal Investigation Brigade of the Public Security Bureau and held a clue analysis meeting first.

The two homicide cases that occurred in September last year have not yet been solved, and a new case has emerged, and the four cases have one thing in common: women, no sexual assault, and no financial loss.However, there are also differences between the four cases. The former is simply the destruction of the corpse, while the latter two are directly dismembered.

A police officer asked, "Can the case be merged?"

Wang Wenhai looked at Pei Lanzhi and said, "Teacher Shao's opinion?"

Pei Lanzhi was head-to-head with Jing Yu looking through the files of last year's case, his eyes gliding over Jing Yu's gentle and serious face, he asked Jing Yu, "What do you think?"

Jing Yu blinked, and all eyes were on him. He thought about it seriously, "I think the case can be combined."

Everyone wanted to hear his reason, but Jing Yu was a little hesitant. He couldn't say that because he was a sword spirit, he was familiar with the knife edge. From the size and strength of the wound on the corpse, he could guess the murderer's physique and strength. Habit.

Fortunately, he has read some books these days, "Because there is one key act, that is, there is no trespass, the murderer does not touch any of the victim's belongings, and the victim's jade bracelet is still on her broken wrist in the dismemberment case. The psychology is very strange, he can kill people brutally, but subtly thinks that he can't take people's property, this is what he committed the crime..." He paused.

Pei Lanzhi added to him in time, "Psychological markers, you can compare the unsolved cases of female stab wound deaths in previous years, and maybe you will find new discoveries."

Jing Yu hurriedly nodded.

An hour later, there were a total of eight stabbing cases that matched the characteristics of these cases, including those where the victim survived.

Criminal investigation team leader Wang Wenhai's face turned green.

It was later discovered that none of these victims and survivors had faced the murderer face to face. They had not seen the face of the murderer, and those who saw the face were already dead.

In the northern urban area, after leaving the Sixth Ring Road, Pei Lanzhi was holding a map to outline the geographical location of the incidents, and they were basically concentrated near Daqiao Town.

Wang Wenhai immediately sent people to Daqiao Town for surveillance.

Jing Yu quietly said to Pei Lanzhi: "I think this killer should be a relatively thin man. I think the incisions on the corpse are mostly left by venting anger. Except for the fatal wound, the rest of the wounds are not strong. It's not smooth, it looks like it was chopped several times."

Pei Lanzhi said to Wang Wenhai: "A short male between the ages of 40 and 50, unmarried, virgin, living alone, educated in elementary school or junior high school, has a bad relationship with his mother, and has extremely strong hatred for young girls, especially those who wear jewelry. Female, paranoid, with stable chronic mental illness, unemployed or freelance."

When Jing Yu and Pei Lanzhi left the Criminal Investigation Brigade, they were very thanked by Wang Wenhai.

Jing Yu felt that he learned a lot this day, "Can the criminal psychology of the human race be applied to us?"

Pei Lanzhi smiled, "Maybe it is possible, but our life course is much more complicated than that of human beings, and criminal psychology is only used as an auxiliary means to solve crimes in China. Look at Captain Zhou and the others to solve the case. They first pay attention to detailed evidence, surveillance, DNA, blood type, fingerprints, when they can’t find any evidence, they will think of asking psychology professors for help, we just point them in a direction to solve the problem, they may not have thought of these, but they are not so sure, and their police force is limited.”

Jing Yu nodded, "Then next time, can we come again?"

Pei Lanzhi was slightly surprised, "Next time?" Looking into Jing Yu's expectant eyes, he couldn't say no to it anyway, although such foreign aid missions were really rare.

Just a few hours ago, in the villa of the Special Criminal Investigation Department, Lin Zhi, who was wearing a professional female suit, was packing her field work bag on the sofa.

Shao Ran walked down the stairs with coffee in his hand, and said to her, "No need to go, I've left this matter to Jing Yu."

"Huh?" Lin Zhi was taken aback, "Jing Yu? Has he studied criminal psychology?"

"Pei Lanzhi just needs to learn it." Shao Ran sat on the soft sofa.

Lin Zhi was silent for a moment, "Deputy Pei...hasn't he never been out on the job? Besides, with his image, it's inappropriate for the police station to go in and out of crime scenes."

Shao Ran stirred the coffee, and said lightly, "He asked me for my ID in person. It's not difficult if it's just a disguise."

Lin Zhi: "..."

Shao Ran's eyes passed through the window screens painted warm colors by the sun, revealing a sense of clarity beyond being single, "It's not easy to wait for so many years. If it were me, I would have given up a long time ago."

Jing Yu originally thought that the knife wounding case would be settled soon. Unexpectedly, two days later, the case was transferred from the human race's criminal investigation detachment to their special criminal investigation department. Seriously injured, if he hadn't reacted in time, the murderer's knife would have almost penetrated his lower abdomen directly, and finally injured the pancreas. Come on, we've arrived at the hospital.

However, this is where the strangest thing happened. When his subordinates found him, there was a corpse not far from him that had rotted beyond human shape, and the corpse was still covered with mud.

Wang Wenhai thought he told the murderer to run away after he was stabbed, and the murderer arranged for him to sleep with the corpse. Unexpectedly, after analyzing and comparing the DNA of the corpse, it was found that the DNA of the murderer they traced was exactly the same as that of the mud corpse. There was also a bullet hole on the back of the corpse. After comparing the bullets and ballistics, it was found that this was the shot Wang Wenhai fired in desperation.

In other words, the person Wang Wenhai chased alone had been dead for several months. This was an unexpected situation that no one could have imagined.

After the case was transferred to the special criminal investigation, Shao Ran personally took Lin Zhi to the criminal investigation brigade to do confidential work. Jing Yu felt guilty. They had already read the analysis of the case file and went to the scene of the corpse throwing before arresting the suspect. But he couldn't find the murderer's abnormality.

Pei Lanzhi comforted him, "It's not your fault, I am the same."

Jing Yu is a sword spirit, and he is quite amateur in solving cases, but he was crawled out of the corpses in the blood mountain, even if he is nine points of mind led by Jing Yu, he still maintains a point of reason.

He sticks to this point of reason, otherwise he would have gone crazy.

"I want to go to the hospital to visit Captain Wang."

"Okay, I'll go with you."

Thanks to Captain Wang's life, otherwise Jing Yu would really blame herself for breaking.

The murderer's body was then transferred to the Special Criminal Investigation Department. Only then did Jing Yu know that Lu Feng's room was a forensic room. A sterilization door was opened between the two bedrooms, and there were morgues, test beds, and detectors inside. , high-speed centrifuge, biological microscope, spectrometer, chromatograph, etc., probably the most valuable instruments in the entire villa are in this room.

Lu Feng is used to dealing with his own organs, and he ran away from home when he disagreed with him. His autopsy skills are very good, and he is from a professional medical school. When he returned, everyone gathered in his room.

Jing Yu asked how Lu Feng was recovering?

Lu Feng said with a look of lovelessness: "Well, my tutor in graduate school personally brought a large group of interns to see me, and took out my intestines on the operating table to show. Can't stop."

Jing Yu: "..."

With a twitching vein on Lin Zhi's forehead, she twitched her hand and gave Lu Feng a slap, "We just finished dinner." Even if the big guy is not human, don't say such a disgusting thing!

The author has something to say: I refer to the theory of psychological profiling.