crime profiler in the dark

Bai Haolin was about to say something, when someone knocked on the office door, he had to tell him to be careful, and hung up the phone. After answering, Yi Yunzhao pushed the door open and entered:

"Dr. Bai, Director He asked me to follow you to review the serial throat cutting case and the red scarf strangulation case."

Bai Haolin was a little surprised. From this, he could see that He Guangzhong attached great importance to Yi Yunzhao. While he was happy for him, he felt a little worried, but his face still showed no dew, and he smiled faintly: "Your observation skills are first-rate. You can handle things better."

"Actually, I already have a bold idea!" Yi Yunzhao said with a serious face.

"Oh? I would like to hear the details." Even though he said that, Bai Haolin knew that his thinking often went astray, and he was somewhat hopeless.

"Zhuang Xusubaru is the real murderer in the two cases!" Yi Yunzhao said loudly, "You think, he issued the two profiles, and the judgment of the psychotropic drugs is so weirdly accurate, it is very likely that he knew I couldn't escape, so I found a scapegoat!"

Yi Yunzhao's reasoning sounded reasonable at first glance, but upon careful consideration, he couldn't pass the scrutiny. Bai Haolin asked back: "Although that's the case, how did he know who is the most suitable scapegoat? And we have always They never doubted Zhuang Xusubaru, so there is no such thing as 'he knows he can't escape'."

Having said that, Yi Yunzhao's idea did give Bai Haolin another direction of thinking - what role did Zhuang Xumao play in the case?At the beginning, I did not approve of his profile, but the development of the case confirmed Zhuang Xumao's statement step by step. If his profiling skills are not that strong, then what is the reason why he can pass the profile twice in a row? Successfully assisted the police in catching the murderer?

It seems that it is indeed necessary to revisit the two cases.

In order to look at the two serial murder cases more objectively and intuitively, Bai Haolin and Yi Yunzhao decided to check the case materials separately.

Let’s start with the serial throat-cutting case. Both the first and second cases took place in a movie theater. Although there were surveillance and bystanders, the murderer deliberately avoided it by wearing a hat and pretending to be a peacock. Therefore, Bai Haolin judged that the other party After many visits and a psychological background; but from the third case onwards, the murderer's tactics changed a lot, from carefully killing people in movie theaters to opportunistically attacking victims in parks. The criminal pattern will change only when the murderer is taking psychotropic drugs; followed by the discovery of phenelzine (an antidepressant prescription drug) at the crime scene of the fourth case, confirming Zhuang Xusubaru’s speculation that the police used psychotropic drugs The drug patient list was further narrowed down, and the suspect Wu Hua was locked. When he was arrested, Wu Hua committed suicide by jumping off the building. The police determined that he committed suicide in fear of crime, and the serial throat cutting case came to an end.