Department of Psychology Forensic

Chapter 69
"Xie Wanfang?"

Cui Jun frowned tightly. After thinking for a moment, he realized that this name had appeared in the special case meeting not long ago, and said, "Is it unlikely that the one Xia Yan mentioned is the victim of the victim?"

"Yes, we also agreed with this point of view at the time. After all, among the three corpses found on the roof of the second fire scene, there was no 54-year-old female corpse. Now it seems that there is at least one more victim." Zhou Zheng said solemnly He didn't expect that Xie Wanfang would become a part of the puppet case. After all, he had already determined in his heart that the murderer was Gao Sheng. Now that he thought about it, he even killed his own mother. It's almost devoid of humanity!

"It's not at least, but it's clear that there is one more victim in this series of cases." Cui Jun stared at Zhou Zheng, and said slowly: "The DNA test results are out."

"What's the specific situation?" Zhou Zheng suddenly became nervous.

"Basically there are no surprises, which is in line with our inference at the special meeting."

Cui Jun took a deep breath, a look of sadness flashed in his eyes, and talked about the results of the appraisal in detail.

"After the DNA identification of the bodies found on the top floor, it was determined that they all belonged to the same person and matched Yanyan's DNA. It can be confirmed that Yanyan was dismembered and sewn up."

"The three charred corpses in the fire scene have been identified after DNA identification. They are all security guards of the library, namely Yu Chi, Tang Hongwei and Zhang Dachun."

"The three headless female corpses found in the second fire scene were also matched in DNA identification..."

Cui Jun told the results of the DNA test one sentence after another. After he returned from the on-site inspection in the library, he received a message from the laboratory.

"The first corpse found in the puppet case was a piano puppet. The head DNA was successfully compared with one of the headless female corpses. The deceased was Xia Kexin, a teacher at Jianghai Normal University."

"The second body found in the puppet case, the one found in the classroom, the head DNA was successfully compared with another headless female body. The deceased was Yang Yun, a teacher at Jianghai Normal University."

"The remaining body without a head, after comparison, the deceased belongs to Zhang Ling, a teacher at Jianghai Normal University."

"I thought the head of the latest puppet case would belong to Zhang Ling, but now it seems that the four missing teachers from Jianghai Normal University have all been killed!"

"As for the body parts in the cross-sea bridge dumping case, the laboratory's DNA test results have also come out. They don't belong to any of the people we investigated, nor are they Wang Jiamei, the tenant of the room at the second fire scene. The identity is temporarily unknown."

"The other thing is..."

"Wang Jiamei is missing!"

Cui Jun quickly summarized the information he knew with Zhou Zheng. If it were other forensic assistants, such as Li Yanyan, then he would not say these at all, but Zhou Zheng was different.

He trusted Zhou Zheng's ability very much, and the previous two cases had been fully proved.

He needed Zhou Zheng's ability to make psychological portraits of criminals to catch the murderer. This case involved Yanyan, and he silently made up his mind to catch the murderer.

"The identities of the three headless female corpses have been confirmed, so we can investigate through the social relations of the three. When the murderer made the third puppet case, he did not use Zhang Ling's head, but Xie Wanfang's head. It means that the murderer still has a corpse and a head in his hand, if we don't find enough evidence, he will create another case!" Zhou Zheng quickly analyzed.

"I have already sent the DNA identification information to the criminal police team. Xia Yan should have seen it. I hope that through the confirmation of the identities of these deceased, the identity of the suspect can be determined as soon as possible." Cui Jun sighed and said: "This way I can Take the suspect's blood sample, conduct a DNA test, and determine his criminal behavior!"

"Master, do you have evidence?" Zhou Zheng was stunned for a moment, staring at Cui Jun with wide eyes, and instantly realized that there was something in what Master said.

"When I inspected the fire scene in the library, I found two fire points. The combustible materials used by the murderer were the books at the scene, but I found the combustion aids. I extracted the traces of the fire point area, and now The lab results haven't come out, so if there is no accident, it should be gasoline." Cui Jun said with serious eyes.

"This can only mean that the murderer can get the gasoline." Zhou Zheng had an image of Gao Sheng in his mind. The specific investigation results on Gao Sheng have not yet come out, but he has seen Xie Wanfang's information, and he can indirectly see that Gao Sheng His family is well-off, and getting gasoline is not a difficult problem, and then he had an idea and asked, "Can the laboratory determine the grade of gasoline?"

"I'm afraid it won't work." Cui Jun shook his head and said, "Under such a big fire, any brand of gasoline will be fully burned. I understand your thinking. It is simply not feasible to use the label to reverse the vehicle owned by the murderer. It seems that you have very little experience in fire scene appraisal!"

"Hey hey...Master, tell me quickly, what does this mean?" Zhou Zheng smiled awkwardly. Not only did he not have enough experience in fire scenes, but he also lacked knowledge about cars, so this question directly touched his blind spot in knowledge.

"Actually, the identification result is not important. When I inspected the fire scene, I felt that the combustible should be gasoline based on experience, so this is a liquid combustible. If the murderer wants to carry it to the fire, he needs a container. Not only that, The murderer transported Zhang Dachun's body to the fire scene, and also needed tools such as bags, but no similar wreckage was found at the fire site, so I carefully searched the trash cans in the library." Cui Jun did not directly say the result , but to tell Zhou Zheng the process of analysis, and pass on his accumulated years of experience to Zhou Zheng.

"Master, have you noticed?" Zhou Zheng's eyes widened, and his breathing became much more rapid.

"Yes." Cui Jun nodded and said, "The library is a key control area. After a fire breaks out, the police will be called as soon as possible. The fire started not on the first floor, but on the third floor. The murderer did this to let the firefighters It is more difficult to extinguish the fire, but correspondingly, it takes a shorter time for him to leave the fire scene, so I guess he may not take the boxes and containers away, and the best way to deal with it is to discard them in a place that does not count as In an obvious place, and a place where the flames can burn."

"Where is the murderer?" Zhou Zheng's curiosity was fully aroused.

"In the trash can on the third floor of the library." Cui Jun shook his head and said, "This murderer is very smart, but he doesn't know much about fire scenes. Gasoline was doused on the luggage, and it was thrown into a plastic trash can. He expected that the trash can and the luggage would be burned in the fire, but the trash can was located not far from the window, and it was the first to be burned. Where the water gun hit, half of the bag was burned, and half remained."

"In this way, no effective fingerprints should be extracted." Zhou Zheng followed up.

"Fingerprints are not to be expected. The material of the bag is not easy to leave fingerprints. I found a hair on the zipper of the bag, which was caught in the metal zipper. The caught part is intact and can be identified. The DNA of hair." Cui Jun's eyes flickered coldly.

"This is important evidence!"

Zhou Zheng was overjoyed, he understood the value of this kind of physical evidence too well, and said: "That bag should be used by the murderer to throw the body. When he went to the library, it contained Zhang Dachun's body, but after arriving at the scene of the fire, he The whole bag must be opened and the body taken out, so when the bag is disposed of, the hair that can be caught on the zipper is most likely the murderer's own hair, and it should be the hair that the murderer inadvertently dropped."

"I think the same as you. The murderer himself will not have long hair, so he will not be caught and pulled off, so the murderer himself may not find out. Of course, it may also be Zhang Dachun's hair. It depends on the laboratory. The result of the appraisal, if it doesn’t match with the three victims in the library fire scene, and also doesn’t match with Wang Qi’s DNA, it should be the murderer’s DNA!” Cui Jun said in a deep voice: “This is definitely not the murderer’s DNA. Leave it to us specially!"

"The murderer specially arranged a Zhang Dachun on the fire scene in the library, and stuffed other people's skin tissue between the latter's fingernails. Mixing skin flakes with charcoal powder, it is already very detailed, I don’t think he can still leave Wang Qi’s hair in the zipper of the bag, if that’s what kind of terrifying layout ability!” Zhou Zheng sighed.

"Actually, I was also to blame at the time. During the autopsy on the scene of the fire, I didn't think there was anything particularly difficult. I didn't help you during the autopsy. I reviewed the video at that time and went to the underground morgue to re-examine Zhang Dachun. Zhang Dachun's nails did not suffer from subcutaneous hemorrhage, that is to say, he did not scratch the murderer before his death, and the dander tissue in the nails is the murderer deliberately leading us to a wrong direction." Cui Jun said .

"I'm sorry, Master, it's because I didn't check the details enough, which caused such an omission." Zhou Zheng apologized immediately. This was indeed his problem. After seeing charcoal and other substances in the crevices of his nails, he preconceived that Zhang Dachun might be strangled. During the death process, the murderer was scratched, and it was not carefully judged that it might have been deliberately arranged by the murderer when he threw the body.

"I can't blame you. I didn't find out at the time. If it weren't for Wang Qi's alibi, we would have almost made an unjust, false and wrongly decided case." Cui Jun sighed helplessly, and said, "I didn't expect the murderer to be so murdered." Smart, but when he did this, there was obviously something special, but we didn't notice it."

"In the future, I will take this as a warning and carefully inspect every corpse. I will never wrong the innocent, and I will never let the criminal go!" Zhou Zheng's eyes flickered with chagrin. Looking back now, there was indeed some carelessness. The place.

"The murderer deliberately left Zhang Dachun's body to us. The purpose is to let us find the dander tissue in it and point the identity of the suspect to Wang Qi. The same is true for Yanyan's matter." Cui Jun's tone changed. He was much heavier, and said: "The condom we extracted from Yanyan's body was deliberately let us find out by the murderer. From the moment Yanyan was taken away, the plan was already in place."

"Damn it!" Zhou Zheng clenched his fists tightly. He felt like being played by the murderer, that is, Gao Sheng, as a clown.

"The murderer is thoughtful and cautious. We haven't obtained any substantive evidence until now, and we don't even have anyone to suspect. How could such a person expose such obvious evidence to us!"

Cui Jun didn't know that Zhou Zheng had confirmed that Gao Sheng was the murderer. However, Zhou Zheng didn't plan to say it now. After all, there was not enough evidence. He didn't want to mislead Master's judgment.

"Yanyan has many restraint injuries on her body. The scars on her wrists and ankles can basically restore her restrained state at that time. It is impossible to get things like condoms from the trash can."

"So, if I'm not mistaken..."

"The moment the murderer took Yanyan away, he forcibly stuffed the condom containing Wang Qi's bodily fluids into Yanyan's mouth, and then when he was about to kill Yanyan, he deliberately used that kind of pouring and drowning to induce vomiting. This method made us mistakenly believe that Yanyan swallowed some kind of physical evidence during the autopsy."

"In this way, when we found a condom in Yanyan's small intestine, we preconceived that the bodily fluids in it belonged to the murderer."

"Under the double verification of bodily fluids and skin flakes, they all belong to Wang Qi's DNA, which led us into a trap set in advance."

"This is a very dangerous murderer!"

Cui Jun stated his inferences sentence by sentence. Since he knew that Li Yanyan was the victim, he has taken a very serious attitude towards this case, and even made analysis and reasoning like a cocoon.

"The murderer should be an acquaintance of Wang Qi, and the social distance with Wang Qi is relatively close, but the relationship between them is not that good, so the murderer set the blame on Wang Qi while provoking the police." Zhou Zhengshun wrote Cui Jun's reasoning said.

He silently gave Master a thumbs up in his heart, and his assessment of the danger of Gao Sheng was a little higher, so that he didn't dare to tell Master that the suspect in this case was watching in the police station right now. lively.

"Do you think Wang Qi and the murderer may be accomplices?" Cui Jun asked suddenly.

"Not too possible!"

Zhou Zheng doesn't dare to say anything now, after all, Wang Qi also has many problems, but according to his judgment on the murderer's psychology, Gao Sheng is not the kind of person who is willing to share his works.

What Gao Sheng needs is an audience, not adding another name to the creator.

"I think the murderer is trying to frame Wang Qi. He has put in so much effort to do such a case. It is definitely not just for the simple purpose of demonstrating and provoking us to the police. He really regards us as the audience of his works. But he also has goals he wants to achieve, and Wang Qi is his goal!"

Zhou Zheng analyzed it quickly. He had a very strong idea in his heart, and the people who were blamed were not randomly selected.

"Wang Qi's decision to go to Sawadhika should have been quite sudden, which broke the murderer's plan to a certain extent. However, the murderer did not choose to stop, but still followed his own process. This is enough to show that the murderer is very egotistical. I'd rather just make shit up, but do it!"

"Our ideas are more consistent." Cui Jun nodded. When he asked Zhou Zheng, he just wanted to hear whether Zhou Zheng's opinion was the same as his own.

"So, I think the breakthrough point of this case is still Wang Qi. After the autopsy is over, I want to talk to Wang Qi." Zhou Zheng said: "We don't know how the murderer obtained his bodily fluids, but he must have Clearly, he just didn't want to say it for some reason."

"Can you pry his mouth open?" Cui Jun's eyes suddenly showed surprise. He has always dealt with the dead and spoke out for the dead. He has almost never dealt with murderers or suspects. The show of fighting wits with living people is not suitable for him.

"How do you know if you don't try."

The corners of Zhou Zheng's mouth behind the mask were slightly raised. After Cui Jun deduced the process of putting blame on him, the idea of ​​chatting with Wang Qi came into his mind.

Interrogation is essentially a battle of poor information. Whoever knows more will have more confidence.

When you go to interrogation when you don't know anything, you can't even quickly tell whether the other party is telling the truth or lying.

vice versa.

When the person being interrogated doesn't know anything, he won't even be able to tell the truth from what the police are telling the truth, and he doesn't even know how much evidence the police have.

　Ask for a monthly ticket, brother Meng
　　
　
(End of this chapter)