It is now certain that the deaths of Xiao Jian, Chang Yuwen and Guo Dahong were due to the incident in which Yang Hao fell from a building a year ago. However, what happened to this Xiao Bin who suddenly appeared? What does he have to do with this case.

Ji Ziyue stood beside the bed and watched Sang Yunqing's autopsy: "I think Xiao Bin's death should have nothing to do with Xiao Jian and them." Yang Hao had an accident a year ago, and Xiao Bin was still abroad when he had an accident. ”

Shen Zezhi frowned, the more the case was investigated, the more complicated it became. If Xiao Bin's death has nothing to do with Yang Hao's case, they will have to hand over the information related to the case to the Chongyu City Public Security Bureau. But Shen Zezhi felt that Xiao Bin's death must have something to do with this case.

After dealing with the scene, everyone returned to the bureau together. The murderers in this case were rampant, killing people under their noses, and it was broadcast live on the Internet at the same time. Although everyone was working on a continuous axis, no one in the special case team wanted to rest. Finding the killer is the only thought of all now.

Shen Zezhi gathered the clues in his hand and sorted them out with everyone: "A year ago, Yang Hao accidentally fell from the building because of the pranks of Lin Yunzhi and others, and a year later, the murderer who knew the truth began to take revenge. Now the murderer we are looking for should have a good relationship with the 404 dormitory, he had the opportunity to poison them, and he is also familiar with Chengnan University. Most likely, he was a student at Chengnan University himself. Yang Hao had no girlfriend when he died, his parents had emigrated abroad, and he had no siblings. So the only one who was motivated was Yu Lang, who posted at that time. However, we have already determined that Yu Lang has an alibi, so we have ruled out Yu Lang. According to Yu Lang's description, he had seen Feng Keli and Yang Hao eating together. So Feng Keli is also suspicious. ”

Qi Kai said: "Feng Keli is the secretary of the counselor's office, or a senior, his interaction with Yang Hao belongs to the normal category, right?" ”

Ji Ziyue said: "But he does have a chance to commit a crime." He had a good relationship with everyone in 404, had access to their dormitories, and had the opportunity to poison them. ”

"Guan Xin, check the information of Feng Keli. Make a cross-comparison between him and Yang Hao. Shen Zezhi commanded.

Guan Xin is checking again, and here he continues to analyze Xiao Bin's case last night, Shen Zezhi: "Xiao Bin went abroad ten years ago, and he was killed in the hotel the first time he returned to China. And the reason for his return to China was to attend the funeral of his younger brother Xiao Jian. ”

Ji Ziyue's heart jumped: "I remember that Xiao Bin graduated from Chengnan University, right?" He left the country ten years ago. Now all the deceased are involved with Sungnam University. Could it be that Xiao Bin and Yang Hao also have some entanglements. ”

Qi Kai shook his head: "No, Yang Hao is from the south, and he has never been to Chongyu City before going to college." Xiao Bin has been abroad for ten years. There was no communication between him and Yang Hao. ”

"Ten years?" The more Kiko recited these two words silently. He said: "Xiao Bin went abroad ten years ago, didn't ten years ago happen to be the time when Chen Cheng, a librarian at Chengnan University, committed suicide?" ”

Shen Zezhi groaned: "You mean that Xiao Bin's death is related to the administrator who committed suicide ten years ago. If this is the case, then why was he not killed until today, ten years later. ”

Ji Ziyue said: "Xiao Bin has not returned to China in the past ten years. This time I returned to China because of Xiao Jian. Maybe it was because of this that the murderer was the first to kill Xiao Jian, and he also uploaded the video on the Internet. He wants to bring back Xiao Bin. ”

Qi Kai said: "People who are related to Yang Hao and Chen Cheng at the same time, this possibility is too low." ”

Shen Zezhi: "Anyway, this is a direction. Qi Kai and Teacher Zhao went to find out what Xiao Bin had to do with Chen Cheng, who committed suicide ten years ago. Ziyue and I continued to investigate the murderer of Guo Dahong. ”

After Qi Kai and Zhao Jiyong left, Sang Yunqing came over with the autopsy reports of Guo Dahong and Xiao Bin.

Trace amounts of ketamine were also detected in Guo Dahong's body. The cause of his death was a fall injury. As for Xiao Bin, he died of suffocation. However, he had a few strangulation marks on his hands, which were probably caused by his struggle. The murder weapon that strangled him was the broken rope around his neck. I did the test, and it was just a broken piece of hemp rope, but it was a few years ago. Sang Yun Qingdao.

Shen Zezhi said: "If it was one person who killed Guo Dahong and Xiao Bin, then why did the murderer use different murder weapons." ”

Sang Yunqing said: "Maybe it's because it's difficult to drug Xiao Bin." ”

Ji Ziyue thought thoughtfully: "We have been looking for contact between Xiao Bin and Yang Hao before. What if Xiao Bin and Yang Hao's deaths have nothing to do with each other? ”

Shen Zezhi looked at him: "What do you mean." ”

Ji Ziyue explained: "I mean, what if Xiao Bin's death and Guo Dahong were not the same reason for their killing? I mean the murderer in these two cases may not be alone. ”

Shen Zezhi said: "So, are you saying that Xiao Bin has nothing to do with the case we are investigating now, he just happened to be killed at this time?" ”

Ji Ziyue shook his head: "No, Guo Dahong died in the murderer's revenge." Will Xiao Bin's death also be revenge? There should be more than one murderer, but there is definitely a connection between them. ”

Shen Zezhi frowned and pondered, if according to Ji Ziyue's analysis, Guo Dahong and Xiao Bin both died of revenge. Guo Dahong: They died as a murderer to avenge Yang Hao, so what about Xiao Bin? Who is the person who killed Xiao Bin avenging?

Ji Ziyue said again: "I just looked at the scene and found something very strange. The layout of Xiao Bin's room is that there is a small round table next to the bed, and there is a chair next to Xiao's round table. And Xiao Bin was lying on his back on the bed. From the surroundings, it can be seen that he struggled without force before he died. Let's make an assumption, last night, there was a person Xiao Bin knew who came to look for him, and then that person sat on a chair next to the bed, and Xiao Bin sat on the bed and talked to him. At this time, another person strangled Xiao Bin with a rope from behind him and strangled him very quickly. We can at least be sure that the person who strangled Xiao Bin from behind has a lot of manpower, and he can subdue an adult man, which shows that he is at least a man. ”

Shen Zezhi said: "Then the person sitting opposite him and talking should be very familiar with him, otherwise he wouldn't let down his vigilance and let him in." ”

At this time, a small police officer came in and said that Lin Yunzhi wanted to see Shen Zezhi. Shen Zezhi and Ji Ziyue glanced at each other and went over to take a look together.

After not seeing him for a few hours, Lin Yunzhi became even more anxious. Ji Ziyue poured him a cup of hot water and comforted: "You don't have to be nervous, it's safe in the police station, and no one can hurt you here." ”

Lin Yunzhi drank half a cup of hot water before relaxing slightly. He put the cup on the table, clasped his hands together and said, "There's one thing I haven't said. Half a month ago, we received a text message. He took out his phone and showed it to Kiko.

The text message only has a very simple sentence: I know your secret, see you in room 405 of the library at 0:00 tonight, otherwise, you will bear the consequences!

Shen Zezhi took it and took a look at it, and returned the phone to him: "You went?" ”

Lin Yunzhi swallowed a mouthful of saliva: "Yes, we are afraid that this incident will be poked out by others." Since this person said that he arrived in room 405 of the library, then he knew about Yang Hao. ”

Shen Zezhi looked at him and motioned for him to continue. Lin Yunzhi let go of the hands he was holding, and unconsciously grabbed the pants on his thighs with both hands.

"We went to the library according to the time he said, we, we saw Yang Hao." Lin Yunzhi said.

"What?" Shen Zezhi frowned. "Have you seen Yang Hao?"

Lin Yunzhi nodded: "Yes." ”

Ji Ziyue was puzzled: "Yang Hao is dead, are you sure you see Yang Hao?" ”

As soon as Ji Ziyue said this, Lin Yunzhi seemed to be a little hesitant.

Shen Zezhi said: "You relax, and tell you all about what you encountered that night." ”

Lin Yunzhi thought for a while and said, "At about eleven o'clock that night, the four of us went to the library together. We wanted to go a few minutes earlier to see who was going to meet us. But we don't know what's going on, we can't open the door to the library. ”

"Wait, did you open the door with the key?" Kiko interrupted him and asked.

Lin Yunzhi said: "Yes, we secretly assigned the key to the library door before, and then we stayed there for several minutes, and when it was midnight, the door suddenly opened." Then we went upstairs to room 405. The door to the room was open, and there was no one inside. We don't dare to stay there for long. I just wanted to see if there was anything there. As a result, we saw that the mask that Chang Yuwen used to scare Yang Hao before was placed on a chair in the middle of the floor. Then, then Xiao Jian saw Yang Hao, he was on the ceiling of the room, his face was covered in blood. We were terrified and immediately fled. ”

Ji Ziyue patted him lightly on the shoulder: "Don't be suspicious, Yang Hao is dead." ”

"However, I did see Yang Hao. I won't admit it. Lin Yunzhi argued.

Shen Zezhi asked him: "You said you saw that his face was full of blood?" ”

Lin Yunzhi nodded.

"So you didn't actually see his face clearly?" Shen Ze's way.

Lin Yunzhi thought carefully for a moment and shook his head: "No, it must be Yang Hao." ”

Shen Zezhi pointed his head with his finger: "When our brain encounters fear stimuli, the things reflected in the brain must be the things you have been afraid of and want to escape from in your heart. ”

Lin Yunzhi slowly lowered his head.

Walking out of the room, Ji Ziyue looked at the depressed Lin Yunzhi through the window: "Once a prank, now there are four lives." ”

Shen Zezhi said: "So we have to find the murderer quickly." Let's go see if there's a clue over there in Guan Xin? ”

Guan Xin also sorted out the information he found at this time, and this Xiao Bin really has something to do with the administrator who committed suicide in the library ten years ago.

The deceased who committed suicide ten years ago was named Chen Cheng, a female student who graduated from Chengnan University and stayed in school. And Xiao Bin and Chen Cheng are classmates. They are still a couple, and the two were breaking up when Chen Cheng had an accident. According to Xiao Bin's transcript in the case file that year, he wanted to go abroad at that time, but Chen Cheng was unwilling to go with him, and the two broke up. As a result, it didn't take long for Chen Cheng to commit suicide.

Ji Ziyue flipped through the case file and said: "So, Xiao Bin hasn't returned to China for ten years because this is his sad place?" ”

Shen Zezhi looked at the autopsy report and said, "I don't see it really. I'll go find Yunqing. ”

Sang Yunqing looked at the autopsy report brought by Shen Zezhi and said, "On the surface, there is no problem. But you've got the right person. This report is only part of the story. It was apparently taken from another report. ”

Shen Zezhi nodded at the name of the forensic doctor on the report: Wen Shaowen.