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Liu Yusheng's words exploded in Yuan Yaxian's mind like a thunderbolt, how could it be! What are the rules? If there is a pattern, the police have not found it for two months? Are the police really such idiots? Others don't know, Yuan Yaxian herself doesn't know? Since the serial murder case, the colleagues of the police force have been busy in the dark, and have tried almost all methods to investigate, but the murderer is like falling from the sky, and there is no trace at all.

But......

Yuan Yaxian felt a faint trace of uneasiness in her heart, and at the same time had some expectations, maybe it was really the police force who had gone into a misunderstanding, maybe Liu Yusheng could really find the key point of this case? So, what is the law of the murderer's choice of targets?

When Liu Yusheng said this, not only Yuan Yaxian concentrated all her attention at once, but the students below were also silent, quietly waiting for him to explain. The impact of the serial murder in Qingyuan City is so great that the students in the ivory tower are inevitably affected, and the level of attention paid to this case is absolutely unprecedented.

Liu Yusheng glanced around the students and said with a smile, "Didn't you all notice? The victims of the serial murders were all women. ”

"Buzz ......"

The classroom was in chaos, and people were giggling and laughing. I thought that Liu Yusheng really had any insights, and was affected by his serious appearance, but I didn't expect it to be such a so-called law? Who doesn't know that the dead were all women, but what kind of rule is this? The victims of homicide are all human, is this a rule?

Yuan Yaxian sighed, her heart was full of unhappiness, this Liu Yusheng is really a waste of feelings! She thought she could hear some useful information, and took out her mobile phone to start recording, but she didn't expect to hear such a joke. This Liu Yusheng is also a professor anyway, how can he be so unreliable?

Liu Yusheng smiled and didn't speak, looking at everyone quietly, he just stood there, but for some reason, the classroom gradually quieted down. Everyone sensed a strange atmosphere, a kind of oppression before the storm was approaching.

"The dead are all women, of course this can't be regarded as a rule," Liu Yusheng said lightly, "and I believe the police must have noticed this." So, every deceased person has had a failed relationship in their lifetime, and in this relationship, they are all at fault, is this considered a rule? ”

"Boom!"

The classroom really exploded, and people couldn't help but talk about it.

"What do you mean? These women all talked about it before they died, and then they were killed when they fell out of love? ”

"It's barely a rule, but it doesn't seem to work."

"The police should know about that, right? It's just a secret, and the professor is not from the relevant department, how can he know? ”

“……”

People are talking a lot, and their opinions are also chaotic, but Yuan Yaxian's face is pale as if she was struck by lightning, because she clearly knows that the police definitely did not grasp this! Each of the five deceased in a serial homicide had a failed love affair during their lifetime? If this is true, then it is not only a reliable law, it is simply a major clue!

Never think that these things are irrelevant, in fact in the field of criminology, no clue is useless. If the connection or commonality between these deceased people can be found out as soon as possible, the motive of the murderer can be deduced through these reversals, and a series of clues can be deduced from this, which is an extremely important point!

However, Yuan Yaxian also has the same questions as those classmates, Liu Yusheng is not from the relevant departments, let's assume that what he said is true, so where did he learn about these clues?

Liu Yusheng raised his hands and signaled, and the classroom immediately fell silent again, from which it can be seen that his prestige among the students is quite high. When people's attention was focused again, Liu Yusheng said: "The classmate just asked me, if it were me, how would I solve this serial murder case, just take advantage of this classmate's problem, I will give you a lesson, this class is mainly about how to peel off the cocoon in the seemingly chaotic chaos and find the real clues." ”

The students took out their notes one after another, sat down and prepared to listen to the lecture, Yuan Yaxian hated that she didn't bring a pen and a notebook, so she had to still open her mobile phone to record.

"The difference and judgment between the so-called homicide and serial homicide, I believe that I don't need to say more, everyone has already mastered this basic knowledge. Five consecutive homicides in Qingyuan City were characterized by the police as serial homicides, which means that the murderers are the same person or the same group. The police have no clue about the case, so how can they determine that the murderers of the five murders are the same person or the same group? I believe the killer must have left clues at the scene of the murder! ”

Liu Yusheng's words seemed to others to be just rhetoric, because he couldn't support his statement, but Yuan Yaxian had already corrected her mentality at this time, because she knew that Liu Yusheng guessed correctly, every murder scene had an old newspaper with the same handwriting, which was left by the murderer. In order to solve the case, the police have kept the details of the relevant cases confidential, and it is impossible for the outside world to know these things, Liu Yusheng guessed so much with a very little information, and based on this alone, he deserves Yuan Yaxian's respect.

"Let's start with the mentality of the murderer," Liu Yusheng continued to talk eloquently, "Why did the murderer leave clues to kill?" Wouldn't it be better if he didn't leave clues and let the police run around like headless flies, and couldn't even link the murders together? There are two possibilities for this, the first is that the murderer has no one in his eyes, he is extremely confident in himself, and he defends the police, he leaves clues, he is provoking! The second possibility involves the commonality of the deceased, they are all women, and they have all had a failed relationship. I may not be easy to understand when I say this, but to put it simply, these five women are not very good in terms of feelings, they either step on two boats, or betray their original partners. ”

"Professor Liu, what does the murderer have to do with the commonality of the deceased when he left clues? How do you know these commonalities of the dead? Yuan Yaxian finally couldn't hold back her strong desire to learn, and couldn't help asking.

Liu Yusheng looked at Yuan Yaxian with a smile, seeing his eyes, Yuan Yaxian suddenly felt a burst of heartbeat for some reason, as if she was a little too nervous. Liu Yusheng did not question Yuan Yaxian's identity, his big lectures were often listened to by many inexplicable people, and he had long been used to it, so although Yuan Yaxian didn't look like a student, he didn't feel uncomfortable because of this. (To be continued.) Mobile phone users, please browse and read, a better reading experience.