"That's also much better than citywide screening." Wu Cuo opened his mouth, realizing that his attitude was a little tough, so he hurriedly added: "Such a big case, even if there are 800 people, 1,000 people, when it really comes to the point where there is no rut, you have to go through the sieve one by one." ”

The old hall chief nodded, "I understand what you mean, it's theoretically right to do this, but in practice...... We tried, but it didn't work. ”

Yan Ruyu took over and said: "Indeed, there are two murderers, we only know that one of them may be an ophthalmologist, and we can't screen the victim according to the time of disappearance, because it may be another murderer who robbed the victim."

Similarly, there is no way to screen based on the time of death.

Then, there is only one screening method left – based on the past experiences of these people.

Obviously unreliable, a person's psychological distortion may be caused by some special experiences, such as abuse, sexual assault, or childhood domestic violence, there are many possibilities, these experiences are often very secret, just look at the resume or a conversation or two, you will definitely not be able to dig out...... Not to mention the possibility of a congenital antisocial personality......"

The old hall chief nodded again and again, "Yes, yes, that's the case...... We've tried stupid methods, but it really doesn't work......"

Wu misreported with an understanding gaze.

Yan Ruyu changed the topic and asked, "Do the three deceased have anything in common?" ”

"All of them are men, regardless of age, occupation, family background...... There is not a single resemblance.

The first deceased, Guan Zhen, a university professor, had already retired, but was rehired by the school to continue to teach, treat people kindly, and have a good reputation among students.

He has a happy family life and a wife, who is also a professor, has retired and turned down a re-offer from the school. With a son and a daughter, the brother and sister run a company together, and it can be said that this is a model family, with a harmonious husband and wife, and a loving father and son. ”

"Brother and sister run the ...... What company? Yan Ruyu muttered as she flipped through the information.

Without waiting for him to find it from the thick investigation materials, the old hall chief first replied kindly: "It is an architectural design company, which is quite famous in the field of design, Guan Zhen and his wife teach architectural design and urban planning in school, and their families are also doing this."

The company was founded by Guan Zhen, and it has only gradually been handed over to the children in the past two years. ”

"Does his school have a medical school?"

"Yes, after graduating from medical school in five years, the first two years were all public courses, not involving majors, and the study direction was the juniors, seniors, and fifths of ophthalmology, plus graduate students and doctoral students, a total of 46 people, and no suspicious ones were found."

There is a whole zero data, which shows that the local criminal police really tried their best to investigate.

Wu Cuo didn't know what he was writing in the notebook, but Yan Ruyu nodded.

The old director continued: "The second deceased, Zhang Yuxiang, 23 years old, was a gentleman, and his family acted as an agent for several clothing brands and hundreds of chain stores. Idle all day long, eating, drinking and merrymaking, he is a frequent visitor to the major entertainment venues in H City.

Because he has been hanging out all the year round and is almost not at home, his family did not find him when he disappeared, and his group of fox friends did not pay attention to it, so it is still unclear when he disappeared. ”

"Who was the last person to see him?" Wu asked wrongly.

"It was a bit chaotic and we ...... I can't say for sure. The old chief motioned for him to look at the investigation for himself.

Yan Ruyu asked again, "What about the third victim?" What did you find? ”

An Yesheng, 31 years old, news editor of a web portal, has a harmonious family, his wife is a primary school teacher, and he has a child, a boy, who is in the first grade, at the school where his wife teaches.

After An Yesheng was killed, his wife was overwhelmed and had mental problems, and was sent to a psychiatric hospital two days ago. ”

"Do they have any enemies?" Yan Ruyu asked.

"Guan Zhen has business competitors...... In school, because he was young, he had a grudge against another professor;

Zhang Yuxiang is nothing more than jealous because of robbing women, and forming a feud with another rich second generation......"

Several people in a group of serious cases exchanged glances with each other, and they all remembered Qin Shouru, and Minghui pouted helplessly.

The old hall chief continued: "As for An Yesheng, those who know him know that he is a workaholic and has never had any grudges.

We checked the people who had a feud with Guan Zhen or Zhang Yuxiang one by one, and they either had alibi certificates or had insufficient motives for killing...... In short, all suspicions are cleared. ”

After the case was finished, there was still no clue, and everyone was silent for a while. During this period, Yan Ruyu's gaze always fell on the map.

"East, south, ......north," Yan Ruyu repeated, "no body was found in the west." ”

The old hall chief nodded, "We analyze, the murderer should live in the west, and subconsciously avoided his place of residence when throwing the body. ”

"Two people...... All live in the West? Yan Ruyu narrowed her eyes, still staring at the map.

"What's wrong?" Wu asked wrongly.

Yan Ruyu shook her head, "It's nothing. ”

Wu Cuo concluded: "Well, based on the existing clues, our current inference is:

First, there are two murderers, one of whom has a certain amount of medical knowledge, especially eye surgery;

Second, from the point of view of the method of making people human, the murderer - or one of the murderers - is a woman;

Third, judging from the place where the body was dumped, the murderer lived in the west of H City. ”

Wu Cuo said as he drew a stroke on the map to enclose the area west of the city.

"And the most important point, fourth, the murderer's psychology is extremely distorted, cold-blooded, and cruel, all those involved in the investigation of the case must pay attention to safety, report in time if found, and must not be alone in danger."

Everyone nodded, and Yan Ruyu said: "Since there is only this clue at the moment, let's start with the victim, in addition to gender, there is likely to be some kind of commonality between them, first find out, why did the murderer choose them?" ”

The old hall chief coughed and asked, "I've really checked it all, and I really haven't found anything in common, I think...... It is possible that the murderer was randomly selected to kill people indiscriminately, and they ...... There is no purpose, killing for the sake of killing. ”

Even so, the murderer follows the subconscious.

At the moment of choosing the target to be attacked, why is it Passerby A, and not B, C, D? Why does the murderer pay so much more attention to A than to the others?

We have to get this straight, because that's the easiest question we can pick out. ”

"Well, maybe we should think differently," the old chief relented, "do you have any suggestions?" ”

"Do you know people in the media? I mean, the portal where An Yesheng works. ”

"I have been in contact with their editor-in-chief, and a lot of social news was given to him by the bureau, and even gave him exclusive news."

"He owes you a favor?"

"So to speak."

"That's going to be easy."