Imitation killings are very rare, and the motive is generally to pay tribute to the murderer or show love, and some are trying to divert the direction of police investigation.This is why sometimes the police block the news. If all the details of the case are disclosed, not to mention the bad social impact. In serial murder cases, if there is imitation, it will be difficult to distinguish.

In the two cases of assault and wounding, there were two prominent features: knives were inserted into the chest and abdomen, and Sophora japonica flowers were engraved on the chest.

These two points have been widely known, now in the streets and alleys, whenever you talk about "Sophora japonica", the topic of "killer" will inevitably be brought up later, Chu Yu once thought narrowly, Xia Yihan can now collect endorsement fees from Sophora japonica. During this period, it became a hit all over the country.

When Feng Ju heard that there was something interesting, he felt like asking: "How did you confirm it?"

"Because the crime process is a bit contrived," Chu Yu cleared his throat, manipulated the projector, and showed the autopsy findings, "During the autopsy, we found scars on the body and head of the deceased, indicating that the deceased and the murderer had a fight. The wound on the abdomen was relatively shallow, and there was a knife wound on the palm of the deceased, indicating that the murderer first attacked the abdomen of the deceased with a knife.

But the deceased noticed that he held the blade, which acted as a buffer, so the abdominal wound was not fatal, and the deceased could still fight after the injury. He may have knocked the murderer away with his head, which can explain why the subcutaneous capillaries on the forehead of the deceased Ruptured and bleeding. "

"After knocking the murderer away, he grabbed the murderer's head and slammed it into a nearby tree trunk, trying to knock the murderer unconscious, but failed. There was too much force on the chest of the deceased, and the hands were too strong, crushing the deceased to death."

Chu Yu pointed to the pale area with an infrared laser pointer, "During the death of the deceased, the sternum must have been oppressed. Judging from the shape of the pale area, it should be the knee. The murderer used the knee to control the deceased, and then freed up his hands to cover the mouth. Nose, choke the neck."

In the light of the slideshow, Chu Yu's cheeks were flushed and her eyes sparkled. Although she coughed a bit, it didn't affect her performance at all. She seemed to be a visiting professor, talking on the podium.

"Next, the bright spot came. After the murderer found out that the deceased was lifeless, he immediately picked up the sharp knife that fell by the side and plunged it into the chest. At this moment, the murderer used such force that the lungs and aortic arch ruptured. At this moment, the blood had not yet deposited. It flowed out of the body, giving the illusion of being wounded by a knife and bleeding to death."

The other detectives understood immediately, "So the cause of death was death by strangulation, and the last knife wound on the chest was intended to be concealed, in order to coincide with the attack of Sophora japonica Phantom!"

"Yes," Chu Yu nodded, "It is also based on the details that it can be judged that the crime was an imitation, because if the murderer's intention was only to kill, he would not insert a sharp knife and carve a pagoda tree flower after strangling the victim."

Feng Ju's expression changed again after hearing this, "Then why can it be judged that the case is a copycat homicide? What if the murderer originally wanted to kill the deceased, was afraid of being arrested, and deliberately blamed the Phantom of Sophora japonica?"

"Because of the fighting scars on the deceased, especially the scars on the head, it can be inferred that the murderer did not draw the knife at first. He wanted to subdue the deceased. The deceased was 176 centimeters tall and weighed 58 kilograms. Maybe the murderer underestimated his strength and wanted to subdue him. The brain tissue of the deceased was damaged, but it was not fatal. No distinction was made, and the murderer drew the knife in desperation.

From the point of wanting to subdue the deceased, it seems that he is also imitating the Phantom of Sophora japonica, because in the two cases of assault and wounding, the victim was subdued, then inserted a sharp instrument, carved the Sophora japonica, and finally the murderer strangled the deceased to death, it should be A miss, but it's hard to say whether the murderer really wanted to put the dead to death. "

The voice fell, and the conference room fell into silence.

"But these clues are enough," the detachment leader's voice rose uncontrollably. "If it is confirmed that it is a copycat murder case, then we can confirm some of the murderer's personality and behavioral characteristics and narrow the scope of investigation."

After finishing speaking, he looked at Chu Yu, "I also ask Forensic Doctor Chu to help analyze and correct it based on the autopsy results."

Chu Yu: "..."

Yesterday it was police officer Chu, today it was Dr. Chu, and tomorrow it was medical doctor Chu. She would like to see how many professions she has to play?

Finally, after everyone discussed, the description of the suspect is as follows:

1. The internal personnel of the school knew the deceased, communicated with the deceased on the day of the crime or a few days before, and invited the deceased to the woods through verbal speech;

2. Indulging in perversion or crime, like watching similar audio-visual products, there is likely to be a large number of collections in the residence, such as pictures of corpses or paintings of Sophora japonica;

3. Young male, taller than the deceased, about 180 to 190 centimeters, suspected to have anti-social personality traits, eccentric, irritable, probably tortured or used animals for experiments.

After confirming these characteristics, the task force immediately notified the principal, held a school meeting, called on teachers and students to report and expose, and asked everyone to provide clues as to whether they found suspicious persons and abnormal things in the school.

The school announced three ways to report: calling the police hotline, reporting to the school security office, and setting up an e-mail box where anyone can anonymously send e-mails to report.

According to the content of the email, the school quickly targeted a third-year student named Yang Lei. The anonymous email stated that Yang Lei often bought hamsters and white rabbits to return to the dormitory, but he did not keep them. Instead, he used anatomical diagrams to see how he could stab broken heart;

He has a dissocial personality, hardly communicates with his roommates, and rarely leaves the dormitory. He stays in the dormitory every day and doesn't know what e-books or movies to watch.

On the night when the Phantom of Sophora japonica was exposed, the light on his bed was always on, and he didn't know what he was doing.Because it was going to bed and off the table, the next day, the roommate found on the table the sketch paper that fell from his bed, with a picture of a blooming Sophora japonica flower on it.

The female police officer in charge of checking the email smiled: "This anonymous email is so cute, it will never tell us that he is the suspect's roommate."

After verification, the content of the email is true. Yang Lei and the deceased Huang Kaiyang joined the same film club, and every Friday afternoon, they would enjoy a movie. However, Yang Lei went there twice when he joined. Later, he made an opinion to the president and wanted to watch it He didn't go if his opinions were not accepted for the theme of murder and gore, but this Friday, he showed up again and sat with Huang Kaiyang.

The director of the film club responded to the police that Huang Kaiyang should like boys. He seems to have a crush on Yang Lei. He once asked him for Yang Lei’s contact information. Yang Lei didn’t come to enjoy the movie many times during the period. Huang Kaiyang kept looking for him, and he didn’t pay attention. on film.

Hearing this, the investigators couldn't help but sigh with emotion, "Huang Kaiyang must be very happy to be invited by his sweetheart, but he didn't expect to see a bloody knife instead."

The criminal police team immediately arrested Yang Lei and compared his DNA with the blood DNA left by the murderer at the crime scene. The test results came out quickly and completely matched.

Chu Yu stood outside the interrogation room, wearing earphones, staring intently at the radiant young man inside.

"Does Huaihua girl know that I made it? Does she know my name? Did she say that my patterns are beautiful? Is she happy? Did she praise me?"

Yang Lei has a handsome face, and the whole person looks dignified, but there is excitement in those eyes, which is close to madness, as if he will stand on the table in the next second and sing the song "Sophora japonica , Sophora japonica, I love you!"

Because of a cold, Chu Yu felt something was clogged in her ears, and she had a splitting headache. She couldn't stand Yang Lei's shrill voice, as if a claw was scratching her eardrum.

Taking off the earphones, she smiled coldly at the one-way mirror: Heh, Miss Huaihua didn't pay attention to you.

Looking at the time, it was six o'clock in the afternoon, almost 24 hours since she left Luoyu City. Because she was assisting the police in handling the case, she had no time to read the news, and she didn't know what was going on with Li Shan.

Walking out of the Public Security Bureau, Chu Yu was about to call Fang Datuo, when he called.

"Chu Chu!"

This roar made Chu Yu's eardrums tremble again, and his brain nerves were about to burst.

"Say what's going on!"

"There's good news and bad news..."

"Say it together!"

"The good news is that the target's foothold has been found!"

Chu Yu's eyes lit up, and he couldn't help but quicken his pace, walking towards the wooden fish waiting outside.

"The bad news is that the Hes and his wife ran away secretly, and no one has been found yet..."

There was a sudden "snap" from the nerves, and the consciousness was blurred for a moment. The mobile phone fell from the palm of his hand and fell to the ground. Chu Yu's body softened and he fell straight down.

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