From the early morning of the 13th to the night of the 18th, four serial cases were found and gaps in the direction of criminal investigation were discovered, which lasted six days, and it was quite fast on the whole.

During the video call on the night of the 18th, Ying Mingyu did not talk to Fang Jinshi in detail about the murderer's inference, but asked them to come back quickly to facilitate their collective efforts.

"I'll go back to Meishi City tomorrow and bring back the corresponding physical evidence. "Fang Jinshi and they were in a hurry to go to Jinyang City, so they didn't have time to bring these things, and it was not appropriate to take them to another business trip, which was easy to cause unnecessary trouble.

"Good work. ”

Now that Fang Jinshi and they have been on a business trip for a whole week, he will be the same tomorrow, and he hasn't been to see shallow for a week.

After hanging up, they discussed it internally, and the trace examination and forensic doctor did not participate.

"It seems that there is a high probability that this murderer* took the original manuscript of Chen Tongtong's novel, maybe she wrote it very well, and the murderer wanted to take it for himself. Luo Yin felt that there was a high probability that this was the case.

"Although this possibility cannot be ruled out, but the murderer did not erase the records of the other deceased's computers, nor did he take Liusisi's tablet, isn't he afraid that we will find out that he has published other people's novels?"

Ding Yuan said that this idea, they have let the technology be checked on the whole network, and if the plagiarism person is found, it is very likely that the murderer will be caught.

"Maybe he doesn't have such a good anti-reconnaissance ability, or he will revise it before releasing it, after all, online search is not so advanced, as long as it is not plagiarized from the original text, maybe it can't be found at all." "Baozhan is actively involved.

This kind of computer knowledge Ying Mingyu is still very lacking, and he did not interject.

"According to my psychological portrayal, the murderer is not a person who can plagiarize other people's works, he has a deep literary literacy, so that he can talk to several deceased people in the creation of novels. Chen Chen tried to turn the tide, he didn't think that the murderer was killing people by stealing other people's works.

"Maybe it was a writer with a hidden physical illness who found these dead people through communication and writing, but after meeting him, it was to vent his improper desires. Liu Minmin didn't insist on going against Chen Chen, her instincts told her that her guess was similar to Chen Chen, but she didn't want to agree with his statement.

"Master, what do you think?"

Seeing that Ying Mingyu didn't speak for a long time, Liu Minmin pulled him.

"The reason for the murder should still be physical and psychological problems, we just found the link between the murderer and the deceased, and then we have to start from the murder weapon, make a clear profile of the suspect, and narrow the scope of screening. ”

It seems that Ying Mingyu has thought far away, and Chen Chen feels that even if he doesn't come to help, their speed of solving the case will probably not be too slow.

"Then wait for Sister Jin Shi and the others to come back tomorrow, and then we will discuss and do a deduction, right?" Chen Chen stretched and prepared to evacuate.

After all, we have to wait for the results of the inspection in all aspects, and it is rare for everyone to finish the discussion before the clock turns, and then we have to continue to look for files. This night, Bao Zhan and Ding Yuan took turns off, Meili rarely worked overtime at night, and Ying Mingyu drove Liu Minmin back.

After everyone left, Ying Mingyu really wanted to have supper, but someone was not at home, and it was not good to wake up Chen's mother so late, so he and Luo Yin went to the store outside to eat a little, and for some reason they felt extremely desolate. I want to say that I went to the hospital to see shallow, but I was afraid that I would wake her up and delay her rest.

After relaxing, they returned to the bureau and continued to look for case materials that should have been available a year ago together with other recruited policemen. However, the focus is on the summer vacation in July and August last year, and everyone searched in detail for a whole night, and there were no suspected cases that could be combined.

On the morning of the nineteenth, the technical side gave them countless disappointments and a big discovery.

They searched the Internet and found the corresponding novels of the four deceased, which were investigated by them themselves. In addition, there was no trace of misappropriation or plagiarism by others, and there were no comments from the same readers.

When the persevering technicians were investigating the forum where Liu Sisi published the novel, they caught an account that often left messages, and at the same time, in Ye Xiaojia's often postgraduate entrance examination forum, they found an account with the same name, and the two had private message exchanges.

After checking by searching for IP and other methods, it is indeed the same address and the same person, and the registration information is a man, and his real name has also been found, his name is Tian Cheng, and he looks good.

"You're so powerful now?!" Bao Zhan praised people who were not afraid of a sore mouth, and he was really surprised. A few years ago, in order to find Chu Lili's address, they were stunned to find Lu Ju to help, and it took a lot of time, and now the technology department has introduced so many high-tech talents.

"Technology is advancing. "Technology is modest.

Chu Lili used a switcher at that time, but Tian Cheng didn't have it this time, and now the technical means have indeed improved, which is of great help to them in investigating the case.

Ying Mingyu felt that he should really sign up for a computer training class to learn technical things. Now that the probability of technological crime is also rising, he is almost out of step with the times.

"Before the deputy team comes back, how about we go and arrest this kid back?" Bao Zhan asked the boss.

Seeing his smug face, Ying Mingyu glared at him: "Let's find out about his situation first, go meet and ask." ”

Although there is a particularly convenient way to check Tian Cheng's physical condition, this method is not used for the time being, and it may be the same as Lu Min, it is just a coincidence.

After all, his relationship with the other two deceased people had not yet been found, and they did not know anything about this person.

"Master, aren't you going?" Liu Minmin still wanted to make this trip, she thought this Tian Cheng was very suspicious.

Ying Mingyu shook his head: "You want to go with the nails and pay attention to safety." ”

"Then I'm not going, I'll follow you. Liu Minmin saw the wind and steered, "Master, do you still want to continue to find the file?"

"They're looking, going to the medical examiner and the scar. ”

In addition to last year's case file, he also asked people to look for the rape and murder case in the summer in the case file six years ago and seven years ago, to see if the first case is still likely to be pushed forward.

This case, because he was suspected of a serial case at the beginning, he focused more on finding old cases and re-investigating, and he hadn't seen Liu Sisi's autopsy in detail. Because of the large amount of physical evidence on the trace inspection side, when he went with Luo Yin last time, everyone was clueless.

"How's it going, do you have a clue about the murder weapon?"

When Ying Mingyu went, Fan Hua had just finished the autopsy of another case and looked at him speechlessly.

"Do you think that I usually have a case in your hands from morning to night?" is really the temper of the eldest young master, self-centered.

"So you still have no direction?"

"Isn't this to give you the opportunity to go to Qianqian for personal gain?" Fan Hua didn't want to admit it.

Ying Mingyu gave him a blank look. He doesn't want to trouble his wife, although he can meet him, he will bother her a little, and he will show her that kind of picture, which will affect the fetus.

Bao Zhan and Ding Yuan quickly contacted Tian Cheng, who worked as a clerk in a foreign trade company, studied Chinese language and literature in college, and was working while taking the postgraduate entrance examination, now 26 years old and unmarried.

Knowing this information, the two quickly looked at each other. Some places are very compatible, and some places are the opposite.

"Can you tell us about your itinerary from the 11th to the 13th of this month?"

"It's... Going to and from work as usual, just like usual. ”

"Do you live with your family or do you share a house?"

"Lived by myself. What the hell is going on?" Tian Cheng was confused.

"Do you have a girlfriend?"

This time, Tian Cheng nodded: "Yes, it has nothing to do with her, right?

If he is a murderer, his ability to pretend to be stupid is too high.

"No, do you know Liu Sisi?" Seeing that the other party shook his head, Ding Yuan then asked, "What about Ye Xiaojia?"

"I know, she is my comrade-in-arms who is admitted to graduate school, has she been admitted?"

The two criminal policemen couldn't help but feel sad, from Tian Cheng's reaction, what he cared about was the postgraduate entrance examination, which was closely related to him, and he did not deny the fact that he knew Ye Xiaojia, this person and the murderer had gradually drifted away.

"Do you mind if we ask, how are you doing, especially in andrology?"

Tian Cheng's face was embarrassed: "I'm very healthy...... There is no way to let Miao Miao have a baby, and we also want to give birth, but there was really no condition at that time...... Aren't you free to choose whether you want to have children or not, and you still care about this kind of thing?"

"When is it, please provide the name of the hospital, we have to verify. ”

Ding originally had the principle of doubting everything, so he still asked for relevant information, and then went to visit the hospital with Bao Zhan, confirming that Tian Cheng was not lying.

His girlfriend had a fetus after she became pregnant two years ago, just before and after Ye Xiaojia's death, it was obvious that Tian Cheng did not have the hidden illness of the murderer, not to mention the motive problem, he could not leave such physical evidence at the scene.

When the two returned to the bureau in frustration, Fang Jinshi and Da Zhuang came back early, and were resting on the case file and waiting for them to discuss it together.

Bao Zhan first reported the details of Tian Cheng's exclusion, and then sat down stupidly.

This was the second plenary meeting after the start of the investigation, and Mr. Ji also participated, so everyone sorted out the progress first.

The forensic doctor determined that the four cases could be combined, determined that the murder weapon was the same type, and a trace residue was extracted from Liu Sisi's wound, which was submitted for technical examination. After the residue was decomposed, it was mainly polyester, and there were some other chemical fiber materials, and it is speculated that the murder weapon was a rough object such as a braided belt, and this special braided belt has not been found yet.

The trace inspection side determined that the murderer had a car through the places where the bodies were dumped everywhere, combined with the investigation on the criminal investigation side. Especially in the two cases in other cities: Ye Xiaojia of Meishi City lived in the north of the city, but the body was found in the woods in the south of the city, even if the murderer asked her to stay close to the south of the city, there was no transportation to complete the body dumping;

The criminal investigation determined that the four deceased all had a hobby of writing novels, and all of them were published on the Internet, and it is possible that the murderers were also like-minded people, and after knowing them through some means, they were lured to go out and commit crimes.

They also made additional explanations about Lu Min's investigation exclusions.