In the autopsy room of the forensic department of the Jing'an City Public Security Bureau, Jiang Xiran and Zhou Xiaoyi had already prepared for a second autopsy, including the clothes of the deceased when he was killed, which were also neatly placed in the physical evidence bag and placed aside.

Su Simeng went to the technical team with the surveillance video, and Lu Ke walked quickly into the dissection room with Mo Yufei.

"Did you make any discoveries?"

Seeing Lu Ke enter the door, Jiang Xiran hurriedly asked.

Lu Ke walked quickly to the dissecting table, the body had just been taken out of the refrigerator, and the surface of the body was already waxy yellow.

He looked at the corpse on the autopsy table and said seriously: "I've been thinking about a question, Jiang Qingxi, as a person who has been out for a long time and relied on 419 to make extra money, and he carried Dures himself, why there was only indecency at the scene, but there was no sexual assault." ”

Jiang Xiran didn't know the clues they learned through the investigation today, and naturally they didn't know that there was a thief stealing socks in the school.

She just said lightly: "According to our previous analysis, there should be an unexpected situation that disrupted the murderer's progression. The plan of the act, or the situation at the time, made him lose the implementability. Ability to behave. ”

Lu Ke nodded, and said: "If no one destroys the scene of the crime after the crime, then what we see should be the appearance of the deceased when he was killed." ”

"That's right."

Jiang Xiran looked at him in a daze, not understanding what he wanted to say.

Lu Ke raised his head, looked at Jiang Xiran's face, and said in a deep voice: "There were no traces of struggle and resistance found at the scene, especially no traces of pedaling. ”

Jiang Xiran still nodded sneeringly, and continued: "Yes, so it is possible that the deceased was voluntary, and it is extremely likely that an acquaintance committed the crime. ”

Lu Ke paused, and suddenly asked her, "So, why was one of the deceased's shoes taken off?" ”

When Jiang Xiran heard this, he immediately understood what Lu Ke wanted to express.

Although she is only a forensic doctor and does not know much about criminal investigation, she can still restore the details of the crime according to the condition of the body.

She said coldly: "The shoe was taken off by the murderer, and only one was taken off. ”

Lu Ke immediately said: "That's right, the deceased's shirt was lifted, and the pants were stacked at the knee level, and in the situation at that time, there was no need to take off his shoes at all." Even in rape cases, it is very rare for the murderer to take off the deceased's shoes. ”

Immediately afterwards, Lu Ke added: "The crime occurred in the woods of the school, and in this environment, most of the men and women who went there were for thrill seeking. In a tense situation that could be spotted at any time, their movements must be as small as possible, how can they slipper? ”

Jiang Xiran nodded, agreeing with Lu Ke's opinion.

But then she raised her head, met Lu Ke's gaze, and asked a little strangely, "How do you know so much about things in the woods?" ”

Lu Ke was stunned for a moment, subconsciously avoided Jiang Xiran's gaze, and continued to analyze the case: "If the murderer didn't have some special habits, it would be impossible to take off the deceased's shoes. ”

Jiang Xiran frowned suddenly: "Foot fetish?!" ”

Mo Yufei was also stunned, and couldn't help but think of the thief who stole socks in the school.

Lu Ke slowly walked to the feet of the deceased and said seriously: "Maybe on the feet of the deceased, you can find some clues left by the deceased." ”

At this time, Zhou Xiaoyi, a forensic assistant on the side, suddenly spoke: "But the laboratory department did not find DNA on the deceased's socks." ”

Jiang Xiran picked up the latex gloves and put them on, and also came to the position of the deceased's feet: "If there is really some slight subcutaneous bleeding, the body will be more obvious after freezing." ”

After saying that, she gently lifted the deceased's right leg, held her right foot in the palm of her hand, and observed it carefully.

According to the circumstances at the scene, the deceased was wearing shoes on his left foot at the time, but there was no shoe on his right foot.

Soon, Jiang Xiran found a row of extremely slight injuries on the outside of the deceased's right foot.

"It was just a very slight subcutaneous hemorrhage, and there was no sign of epidermal peeling."

Jiang Xiran pointed to the outside of his foot and motioned for Lu Ke to come over and check.

Lu Ke asked as he walked, "Can you tell what the tool is?" ”

"The injuries are arc-shaped, not coherent, but neatly arranged, with slight intervals, and seem to be ......" Jiang Xiran hesitated for a moment, and then looked at the position of the deceased's soles, and also found extremely similar injuries of the same type.

Jiang Xiran thought for a while, and said in a deep voice: "It seems to be a tooth mark......

Lu Ke breathed a sigh of relief and said expressionlessly: "Sure enough, it's a foot fetish, and the murderer is only interested in the feet, so this case only has indecency, not sex. Violate. ”

After listening to Lu Ke's judgment, Jiang Xiran immediately stood up, beckoned Zhou Xiaoyi beside him, and ordered: "Take pictures and fix these two rows of tooth marks to see if you can extract the tooth lining, this is a very critical evidence." ”

Zhou Xiaoyi nodded, took out the criminal investigation camera to take pictures and fix, and said, "I'll contact the technical team and ask them to take equipment to extract tooth marks." ”

In the office of the criminal police team, everyone determined the scope of the next step of investigation according to the clues they currently have.

"At the moment it is known that this is a incidental sex. In the case of homicide of an aggressive nature, the murderer is a psychopathic patient with a serious foot fetish circumstance. Often, a foot fetish sufferer's hobby may be limited to the feet, but may extend to the legs, shoes, socks, etc. And judging from the scene of the crime, the deceased's socks were not taken off, which shows that the murderer also had a certain degree of fetish, and it is very likely that he was the one who stole socks in the girls' dormitory. ”

After Lu Ke finished speaking, he cast his gaze at Mo Yufei.

Mo Yufei settled down and opened the notepad she was carrying: "The murderer can enter and leave the girls' dormitory freely, and it is very likely that he is an employee of the school." Taking advantage of the convenience of their own work, they enter the girls' dormitory to steal socks, and it is likely that the logistics staff, such as entering the dormitory to repair air conditioners or repair equipment. ”

Su Simeng on the side said: "I asked, the surveillance video of the dormitory building can only be stored for seven days at most, and Qi Lingqiu said that the last time he lost his socks happened a month ago, and the way to investigate the surveillance video is not working." ”

Mo Yufei thought for a while and continued: "But if we can find out the time period when the socks were lost, it would be fine if any construction team entered the dormitory to repair things. Even if there is no surveillance footage, the repair must be registered. ”

Su Simeng nodded and said, "Okay, I'll contact the school's logistics department, and if there is equipment in the dormitory building that needs to be repaired, it will definitely be reported." ”

Ling Zizhen also opened his mouth and added: "The tooth membrane has been extracted, although there is no DNA reliable, it can be regarded as a key trace evidence. ”

Lu Ke thought for a while and analyzed: "The murderer has a foot fetish complex, he initially met his perverted psychological needs by entering the girls' dormitory to steal socks, but now it is obvious that he can no longer satisfy him. He began to use 419 to achieve satisfaction, which was a very obvious process of psychological change, and in the process, he must have done something else, such as he would squat on the ground and look at the feet of passing schoolgirls. ”

"If there is such a perversion in the school, someone will definitely know about it." Ling Zizhen said seriously.

Lu Ke stood up and made a serious voice: "Send out all the field detective teams and check in this direction." ”