Zhao Jiyong said: "We found that the murderer deliberately imitated the murderers of several notorious serial murders in the world in the process of committing the crime. The murderer is brutal and has no mercy. ”

Shen Zezhi: "The most important point is that we haven't found it yet, what is his motive for killing?" ”

Ji Ziyue said: "Murder is divided into agitated murder and murder. Judging from this case, the murderer could not have been a murder of passion. Then it's murder. What must be present in a murder case is the motive for the killing. And what we haven't found in this case is the motive. I think the murderer's motive must have been hidden in the connection between these victims. ”

Shen Zezhi: "Yes, let's change our thinking. Qi Kai and Teacher Zhao went to check the social relations of several deceased, and Yun Qing went to check the line of heparin and DNA. Guan Xin, you go and kill all the clues they can find on the Internet and do cross-comparison. ”

Guan Xin: "Yes. ”

Shen Zezhi looked at Ji Ziyue and said, "Let's go and find out who Deng Ruoyi's mysterious netizen and 'Ye Da' are." ”

After everyone was assigned a task, they set off to find clues, and Noriko marked the locations of several murders on the map, but there seemed to be no connection between them. Needless to say, two of the dead were still in another city.

He then made a list of the times when all the victims were killed. The more Kiko looked at this time, she suddenly sighed.

Shen Zezhi asked him, "Did you find anything?" ”

Noriko Yue said: "Look at the date of the murder of these deceased. Let's first look at the dates of death of Yang Yun and Fu Xin, February 27 and March 17 respectively. February 27 is the date of birth of Richard Rewa Ramirez, while March 17 is the date of birth of John Wayne Garcy. The murderer killed them in imitation of Richard and Garcy. However, the date of death of the first deceased, Qin Qiaomei, was January 19, and the murderer imitated Edward Ocedo Gaine to kill people, but this date has nothing to do with Edward. ”

Shen Zezhi frowned: "What does this mean?" ”

Noriko said: "But this day is the birth day of the famous detective mystery writer Edgar Allan Poe. Now let's correspond all the time. In addition to what we already know, the second deceased died on January 31, the day when Theodore Robert Bundy, known as the school killer, began to kill. The two dead in Cangzhou died on May 6, but it was Caston Lehu's date of birth. ”

"Caston Leho?" Shen Zezhi looked at him.

Ji Ziyue nodded: "Yes, another detective fiction writer." ”

Shen Zezhi frowned and said: "The time of the death of all the deceased is secretly related to a special time, and this special time is related to a murderer of a serial murder case or a writer of detective novels. He seems to be ...... Can't distinguish between reality and confuse fiction with real events? ”

Ji Ziyue said: "But looking at his killing methods, I can't tell that he can't distinguish between reality and fantasy." ”

Shen Zezhi: "This is a disease, and it can be found in many types of mental illness. But most people don't have a serious condition. In other words, the patient is only confused about reality and imagination in one aspect, and has no effect on other aspects. If you can't tell the difference at all, it's a very serious schizophrenia. ”

Noriko looked at these special dates and wondered, if these times implied those killers, he could understand, but it had something to do with mystery fiction writers...... Could it be said? Ji Ziyue's eyes lit up and said, "I know what that 'Ye Da' refers to." ”

"Hello, I'm a police officer, and I want to see your lab." Zhao Jiyong picked up his certificate and showed it to the laboratory management personnel of the Department of Forensic Medicine of Cheng'en Medical College.

The management carefully looked at Zhao Jiyong's photo for a long time before inviting him in.

"I'm sorry, but because of what happened last time, the school has become stricter in managing the entry and exit of the laboratory."

Zhao Jiyong nodded in understanding, and he said as he walked in with the administrator: "Who else in the school can enter the laboratory besides you administrators, professors and students in class?" ”

The manager opened the autopsy room where the corpses had been present, and said, "There are also cleaning staff who can come in." ”

"Janitors?" Zhao Jiyong turned his head to look at him.

The administrator nodded: "Yes, such a large laboratory, people use it almost every day, although the students will help tidy it up, but the main cleaning work is still done by the cleaning staff." ”

"Where are your janitors here? Hired by the school itself? Zhao Jiyong asked.

"No, our school cooperates with a cleaning company outside, they have an office in our school, and all the cleaning staff are sent from their headquarters." Administrator said.

Zhao Jiyong walked into the dissecting room and looked around, the corpse and other things had been taken away, but other things were still placed in place, ensuring the original state of the scene to the greatest extent.

Zhao Jiyong said: "Can you take me to your monitoring room to see?" ”

The administrator nodded briskly: "Okay." ”

The laboratory's monitoring room is located in a separate room in the duty room on the first floor of the building. The caretaker knocks on the door, and the people inside come out and open the door.

"Xiao Yang, this is a comrade policeman, here to understand the situation." The administrator explained.

The one who was called Xiao Yang was a young man, and he glanced at the administrator sideways and asked the administrator and Zhao Jiyong to go in.

There are eight large screens, each divided into smaller screens, on which are the footage of all the cameras in the building. Zhao Jiyong quickly found the key cameras, that is, the ones that were turned off on the night the murderer moved the body.

"Are you responsible for the surveillance here?" Zhao Jiyong asked.

Xiao Yang nodded: "It's me." ”

Zhao Jiyong asked: "The night before the crime, why were these cameras turned off?" ”

Xiao Yang said angrily: "Didn't you ask before?" ”

Zhao Jiyong looked at him with a smile: "Can't I ask again?" ”

Xiao Yang said impatiently: "Those cameras don't know what is wrong with them the first day, and they can't be used all the time." I called the maintenance and asked them to come and fix it. Anyway, I can't use it, so I'll turn it off. ”

Zhao Jiyong looked at the surveillance video and said: "But the next day, the maintenance personnel came to check and did not find any problems with the camera." ”

Xiao Yang's voice suddenly raised: "You mean I killed someone?" Don't think you're a cop and can spew blood. ”

Zhao Jiyong looked at him with a smile on his arms: "I'm just narrating the facts, you have such a big reaction...... It's a weak heart. ”

Xiao Yang stood up suddenly: "You ......"

"Hey, hey, Xiao Yang, what are you doing, sit down!" The administrator hurriedly pressed Xiao Yang's shoulder to make him sit down.

Zhao Jiyong said to the administrator: "I want to talk to Mr. Yang alone. ”

Administrator: "Okay. He turned his head and said to Xiao Yang: "You have something to say, don't make a mistake." ”

Zhao Jiyong watched the administrator go out and closed the door before turning back to look at Xiao Yang.

"Y-What do you want to ask?" Xiao Yang is a little lacking in confidence.

Zhao Jiyong turned to look at the monitor and said, "I hope you tell the truth, I won't record what you say today." Why were you turning off those cameras? ”

Xiao Yang avoided Zhao Jiyong's gaze: "I said it." ”

Zhao Jiyong sighed and said: "You are a foreigner, and most of the cleaning staff in your school's cleaning office are temporarily hired outsiders. In addition to the experimental equipment, there are more valuable things in your building. In addition to the dissection room, the cameras can also monitor the professor's research room next to the dissection room. Do you want to make it clearer than I said? ”

Xiao Yang's face turned pale in an instant.

Zhao Jiyong said: "Can you tell the truth now?" ”

Xiao Yang took a deep breath and asked, "Are you really going to keep my words secret today?" ”

Zhao Jiyong nodded.

"Okay, I said." Xiao Yang wiped his face and said, "I and a person from the cleaning department are fellow villagers, and we came to Cheng'en Medical College because we were hired by a person, and he asked us to steal Professor Chen's research results." The night before the accident, Professor Chen had forgotten his computer in the laboratory, and I thought the time had come. I informed my fellow villagers and asked him to secretly hide in the laboratory building while cleaning, and I turned off the camera and waited until no one was around, so he went to the research room to copy out the things. ”

"But something happened." Zhao Jiyong said.

"Yes, at about one o'clock in the morning, he went to the research room, only to hear movement inside the laboratory. We all thought there were people inside, so he came back. Xiao Yang said.

After listening to this, Zhao Jiyong groaned: "Do you often have people in your laboratory in the middle of the night?" ”

Xiao Yang shook his head: "Very few, except for those professors in the research room, but they stay in the laboratory all night to make records." ”

Zhao Jiyong frowned: "When did he hear movement in the laboratory, can you be specific?" ”

Xiao Yang thought for a while and said, "He went from the first floor to the seventh floor around one o'clock in the morning. Because there is a camera in the elevator, you will take the stairs. It must have taken him about three minutes when he got to the seventh floor. I heard movement in the lab, it must have been around 1:10 a.m. ”

Zhao Jiyong looked at him and said, "I know, didn't you copy Professor Chen's research results?" ”

Xiao Yang stared at him for a while, and was defeated: "He did open Professor Chen's computer, but Professor Chen was very careful, his research results were not stored in the computer. We really didn't get it, otherwise I wouldn't be here today. ”

"So you're not dead yet?" Zhao Jiyong asked sharply.

Xiao Yang lowered his head: "I will resign today." ”

Zhao Jiyong looked at him for a while and said, "Don't do illegal things, don't have a fluke mentality." ”

Xiao Yang looked at the back of Zhao Jiyong leaving and sighed.

In the office, Shen Zezhi perked up when he heard Ji Ziyue's words: "You know? ”

Ji Ziyue nodded happily: "This Ye Da should refer to the suspenseful reasoning god Zhiye on the Duomi Network." ”

Shen Zezhi: "Know the leaves? ”