The small forensic office gathered people from the criminal police team at some point, sitting lazily on the sofa, the media announcement that had just been opened would make him a little tired, Su Xiaozhe was analyzing the comparison of the experimental results of different chainsaw models in front of the computer screen, Coco made milk tea for everyone, but poured himself a cup of coffee, while Gu Ji slowly paced in the room with more than a dozen pages of Yu Jia's information, his high heels softened his voice, and he beat the rhythm on the floor.

"I've always wondered," Guji said as he enjoyed the smell of hot cocoa, "how did the murderer find Yu Jia?" Two of the first three corpses we can all be sure of prostitutes/women, belonging to high-risk groups, easy to approach and control, but Yu Jia is a college student in a regular school, and an only daughter from a well-off and wealthy family, although her parents are divorced, and classmates say that her personality is a little paranoid, but it is very different from the previous few people, she can't let the murderer take her home, tie her up or strangle her. ”

"Alcohol." Coco stood by the window with a mug and said, "The alcohol content was found in the corpse, although the concentration is not high, but you can think of it this way, she may have been very drunk when the murderer took her away, but he didn't kill Yu Jia directly when he brought her back, it was likely that he was tortured for several hours or more, and the alcohol in Yu Jia's body naturally decomposed during this time, so the concentration decreased." ”

Guji closed the folder and frowned, "He is even bolder, he is not satisfied with the woman who obeys his fate, and he begins to crave fresh playthings. ”

Coco nodded slightly, and turned to look at Da Xuan, "About fingerprints......"

"After analyzing, the thumb fingerprints you provided and the fingerprints of the Physical Evidence Section are comparing the current crime database, if the murderer has a criminal record, then you can quickly know who he is." Da Xuan took out a cigarette from his pocket, and threw one to Gu Ji as he spoke, and as soon as the two of them wanted to light it, a cold voice from Coco came from their ears, "Smoking, go out." ”

Gu Ji smiled good-naturedly and put away the mint cigarette, Da Ji hummed and chirped in his mouth, and did not dare to light it, Xiaozhe hid behind the computer screen and snickered vigorously.

"I still feel a little strange, why does Yu Jia have so many violent scars on her body than others?" Da Xuan said with Erlang's legs crossed.

"Didn't you talk about the escalation of violence?" Xiaozhe said.

"No......" Gu Ji suddenly began to think, "Maybe there is another explanation, there is still a difference between Yu Jia and the previous ones, Yu Jia's family is wealthy and has a university education, what if this stimulates the murderer?" ”

Coco's gaze suddenly lifted from the mug, and even Su Xiaozhe's attention was attracted, and Gu Ji and Da Xuan analyzed it one by one.

"Yu Jia's identity as a college student stimulated the murderer, causing her to suffer more violent beatings than others, indicating that the murderer who did it this time did not have a high degree or failed to study."

"So the student ID card was left at the scene, which is not only a provocation to the police, but also a mockery of the identity of the deceased, 'Look at the college students, they can't escape my palm'."

"So far, we can roughly guess some of the characteristics of the murderer, he is not highly educated, he may have lived in the middle and lower classes, he has a private place with poor sanitation but the body is cut, and there is a hiding place where the head is kept, and one of the people has significant white spots on his face,"

Guji found a map of the city and spread it out on the floor, crouched aside and continued, "And it is likely to haunt the south and southwest parts of the city. ”

Coco put down the mug and added to the side, "I have medical experience, I know where it is easier to cut the spine, and I can clean up the body." ”

While several people were discussing one by one, Da Xuan's mobile phone suddenly vibrated violently.

Da Xuan saw that it was Bai Ling's call, so he turned on the speakerphone and put it in front of everyone, "Xiaobai, I turned on the speakerphone, you say it directly." ”

"Captain, Captain, we've found it!"

"What?"

"Wang Aiguo is worthy of being a master of the Internet, and he just found out whose fingerprints on his student ID card are in the criminal library! Captain, where are you? Bai Ling's voice was a little excited and overwhelmed.

"In the forensic department."

After saying a few words to Xu Wanli on the phone, Bai Ling continued to turn to the other end of the phone, "The captain asked Sister Xun's computer to be turned on, and Xiao Xu has already sent that person's information!" ”

Several people looked at each other, and they all came to the computer that Xiaozhe was using, and an email just jumped on the screen.

Su Xiaozhe opened the email, and a resume-like page unfolded in front of everyone.

The man on the page is named Zhang Chengqi, next to his ID photo, the fingerprints in the database match those on the student ID, and the person's records are listed in detail below.

"Did the captain see that? His family used to be in the slaughtering business! It's normal to cut corpses! Xiaobai's voice expressed excitement in the speaker.

Guji also nodded, "This person also has a criminal record of violent and wounding, let me see, it was just released a year ago, it looks like the person we are looking for." ”

Da Xuan didn't feel a trace of excitement, "This person is very similar to the person we are looking for, but it may also be a smoke bomb deliberately released by the murderer, in short, we only have this clue in our hands now, Bai Ling, to check his current address." ”

"It's been found! Patriotism is very powerful! On the other end of the phone, there was the sound of Bai Ling slapping Wang Aiguo on the back and the sound of patriotic groaning, "He found Zhang Chengqi to work in a logistics company after he came out of prison, and was later fired because of a fight with a colleague, and now he has inherited his father's stall to sell pork in Xiangyang vegetable farm." ”

Guji turned around to look at the signs drawn on the map of the city, and among the special signs of several major vegetable farms in Nanshi, one of them is called Xiangyang Agricultural Trade Center.

"Bai Ling, where was the last place where the groom said that the prostitute/girl with the head was finally recruited?" Da Xuan suddenly thought of something and asked eagerly.

"I'm checking ...... Next door! Less than three intersections past the Farmer's Trade Center! ”

"Good!" Da Xuan's voice finally carried a little excitement, "Bai Ling, notify the whole team to assemble, let Xiao Xu report the information to the director, you go to the warehouse to get the guns, I will come over immediately." ”

Without saying a word, Guji and Da Xuan walked to the door, while Coco stood in front of the map, thinking about something.

Suddenly, the door was opened again, and a whirlwind rushed in front of Coco, startling her and Xiaozhe.

"Cell phone!" Da Xuan said.

Yes? Coco didn't react, and instinctively reached out for her phone.

Da Xuan saw that Coco's mobile phone had been turned on, so he pressed several keys and then returned it to her, "I set up a quick dial, press 1 is my number, if there is an emergency, just copy me," added as he walked out, "Xun Keran, you dare to turn off the phone again to see me cancel all your annual leave." After saying that, he blew out the door like the wind.

Coco stood stunned, holding her mobile phone in her hand, crying and laughing for a while.

Gu Ji and Su Xiaozhe were smiling ambiguously beside them, but Coco turned around, and the two immediately pretended to look elsewhere.

――――――――――――――

Zhang Chengqi was interrogated overnight after being arrested, and when Coco arrived at the forensic office in the morning, after making a cup of milk tea, Su Xiaozhe just rushed in.

"Sister Xun, can I go to see Xiaobai and them for interrogation?"

Coco didn't raise her head, stretched out her hand, and spit out two words, "Report." ”

Su Xiaozhe looked at her blankly, so Coco could only put down the mug, "I asked you for the analysis report of bone particles for many days, little friend." ”

"Oh, I sent it to your email last night."

Coco waved his hand, and Xiaozhe ran away in a hurry.

So Coco was the only one left in the office, quietly reading the experiment report, comparing and thinking about the data.

The door creaked open, and Guji walked in with a tired look, half-lying on the couch without saying a word, and lit a mint cigarette.

Coco glanced at him and didn't say anything, as an expert in criminal psychology, she was probably also there during last night's overnight interrogation, and I am afraid that there is nothing to gain from this face.

"It's not him." Guji muttered to himself.

"Do you have proof?" Coco asked, still staring at the computer screen.

"Zhang Chengqi is a pork seller, he said that a few days ago, it seemed that someone left a pamphlet on the ground, he picked it up and gave it to a woman, if he was in the law, he could argue that he had such an accidental contact with Yu Jia before, so there are his fingerprints on his student ID, of course, no one in the criminal police team believes his confession, and I don't believe it, but I know it's not him."

"Do you have proof?" Coco still repeats the problem.

Guji looked at her side face, "The logic of his answer to the question is messy, it can't be the one who plotted, but if it is the one who executes, there should be white spots." ”

"White spots may be a disguise deliberately put on the face." Coco said.

Gu Ji was stunned, he hadn't thought about this possibility so far, but he still insisted that Zhang Chengqi would not be the murderer, "There is no chainsaw in his house, and the physical evidence department has not found any saws." ”

"The chainsaw can be hidden, and his house may not be the place where he cuts open the body and hides the head." Coco still looked at the screen and replied without thinking.

Guji was a little confused, "You think he's the murderer we're looking for?" ”

Coco finally turned her gaze, "I don't think so. She said.

Coco thought for a while, and slowly put the mug on the table, "When I saw the first headless female corpse, it was still in the early days of Xu Li's case, and now it has been many months, and I felt tricky when the first corpse was placed in front of me, and I told Bai Ling at that time, no matter who this person is, he is bold, cunning, cautious, and extremely perverted, he took me months to find a fingerprint, and those fairly flat wounds make me think that he may be able to cut off the head of the corpse while humming a song, such a person, Will we catch him with his student ID card? ”

"And it's varied." Guji added.

"Not only that, from prostitutes to female college students, from leaving nothing at all to leaving a student ID card to deliberately identify themselves, from what you criminal analysts often say, crimes that are still in the learning and development period are likely to become more cunning......"

Guji's deep eyes looked at Coco, "He's challenging your authority. ”

"That's right," Coco said, standing up, "he's bragging that he knows how to hide corpses better than anyone else, 'I don't want you to find your identity when you can't find it, I give you a student ID to save you confusion, and to show your incompetence, I can clean up the body to the point where your medical examiner can't find anything,' I will clearly see these silent displays from the corpse at every autopsy, and one day...... The day he catches him, the day he argues in court, I will let him see who the professionals are. ”

"Yes," a gentle smile appeared on Guji's face, "his arrogance will become a fatal weakness." ”