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When Liu Yusheng's name was mentioned, nine out of ten people here had heard of this person. This is related to the professional field, if you are an ordinary person, you must not know whether Liu Yusheng is a cat or a dog, but in the field of criminology, I am afraid that no one does not know his name.

Liu Yusheng has only become famous in recent years, after he was unknown. Three years ago, Qingyuan Daily reported the whole process of Liu Yusheng assisting the police to solve an unsolved case abroad, the twists and turns of the unsolved case are amazing, Liu Yusheng's performance in it is amazing, it can be said that the whole police were helpless to solve the case alone. Since then, Liu Yusheng's deeds have been repeatedly reported in the newspapers, and even mentioned in the case materials within the police department, because of the rush to report by many media, he has a very loud reputation in the judicial field and criminology.

Later, Liu Yusheng returned to China and somehow became a professor of psychology at Qingyuan University, of course, he was only in charge of criminal psychology.

Liu Yusheng is famous not only because of his extremely high professional quality, extremely accurate analysis of the case, and his psychological grasp of criminals is also terrifying, but also because this person is very distinctive. Liu Yusheng has a nickname called the Donkey, which is not very nice and derogatory, but it is very suitable to describe him.

Liu Yusheng has a great temper, but he only targets people with a higher status than him, but he is more kind to his students. At the same time, he also has a problem, he doesn't like dealing with the police very much, according to himself, because he always thinks the police are stupid when he sees them......

When Liu Yusheng first started his class at Qingyuan University, many elites in the field of criminology went to observe, and the police also went to several experts in this field. After listening to it a few times, the elites of criminology became Liu Yusheng's apprentices, and the police never went to observe again, and no matter how dissatisfied Liu Yusheng was with the police since then, the police have not made any indications.

Su Yuzhong knew that Liu Yusheng was a person with real skills, but the shelf was too big. If the serial murder case can be helped by Liu Yusheng, it will definitely be able to make a breakthrough, but Su Yuzhong is not sure whether Yuan Yaxian can invite this person.

You must know that in order to solve a homicide case, the police almost even moved out of the mayor, and the director and the principal went into battle together, and finally there was an unpleasant scene, and in the end Liu Yusheng did not show up. He is an expert and scholar, and he is not an employee of Qingyuan University, he just signed a cooperation agreement, and no one can help him.

"Xiao Yuan, I admit that this Liu Yusheng has real skills, but he has a stinky and hard temper, and he doesn't like to cooperate with the police, can you please him?" Su Yuzhong said suspiciously. 【】

"Su Bureau, this is just a superficial phenomenon, Liu Yusheng made this appearance, but he was afraid that others would disturb his life, in fact, this person is very easy to speak. These are all told to me by my classmates, my classmate is a student that Liu Yusheng likes very much, they have a good relationship, she won't lie to me about this kind of thing. Yuan Yaxian said confidently.

Moreover, Professor Liu Yusheng does not like to cooperate with the police, but he thinks many cases are too simple, so he is not interested. This serial murder case is difficult, and I'm sure he will be interested. Yuan Yaxian then said again.

Such a large sub-bureau has to ask for foreign aid to solve the case, although it doesn't sound good, but now there is really no good way. The impact of the serial homicide case is too great, and the pressure from above is also great, Su Yuzhong is sick and rushed to the doctor, or it can be said that the dead horse is used as a live horse doctor.

"Okay, Xiao Yuan's matter will be left to you, no matter what, you must invite Liu Yusheng to me!" Others will go down and check for me, don't miss any possible clues! ”

Qingyuan University, the best institution of higher learning in Qingyuan City, is located in the bustling downtown area, covering an area of 5,000 acres, with nearly 3,000 full-time teachers and full-time scientific research personnel! This is a veritable famous school, and all the students of Qingyuan University are top talents, and with the identity of students of Qingyuan University, it will be easy to find a job wherever you go.

Yuan Yaxian strolled on the campus of Qingyuan University, the green environment of birds and flowers was refreshing, it was class time, and the campus was very empty. Yuan Yaxian did not delay, she came directly to the sixth teaching building, and her classmates told her that Liu Yusheng was taking a big class here today.

It's not the first time Yuan Yaxian has come here, she is very good with that classmate, so she often comes to play with her, so she is very familiar with this place. When she came to the large classroom on the second floor of the sixth teaching building, as soon as she entered the door, Yuan Yaxian saw the crowd of people, who were almost unable to squeeze in.

Liu Yusheng's class is like this every time, there are many people, because he is too famous, and more importantly, there are always many girls listening to his class, many beautiful girls.

This is really a very strange thing, Liu Yusheng's lectures are very boring, all day long, there are either dead bodies or various modus operandi, how can there be so many girls to listen to this kind of class? Are girls so heavy now? With beautiful girls, it's not surprising that all kinds of wild bees and butterflies flock to the lectures.

Yuan Yaxian couldn't find a seat, so she had to stand by the window, she came just right, and within two minutes of standing, the class bell rang, and Liu Yusheng also came to the classroom. Yuan Yaxian had already seen Liu Yusheng's photos, and when she saw the real person at this time, she felt that he was more ordinary than in the photos, and he didn't feel anything else, and he didn't have that so-called aura at all.

Liu Yusheng looked ordinary, with the usual thinness of scholars, he stood on the podium and clapped his hands and said, "Close the door and let the dog go!" ”

"Hula!"

The doors to the classrooms were immediately shut, the curtains were drawn, all the lights were turned off, and the classroom was plunged into darkness. Yuan Yaxian was a little confused, what is the situation? Liu Yusheng has this kind of change in one sentence, it seems that it has been rehearsed a long time ago, but what is he going to do?

Immediately afterwards, Yuan Yaxian understood that Liu Yusheng was going to put a slideshow.

The so-called closing the door and letting the dog go turned out to be Liu Yusheng's joke, he wanted to close the door and turn off the lights to show slides. Although it seems to be a very simple sentence, Yuan Yaxian realized that Liu Yusheng was powerful, just a joke with vigorous and resolute actions, and immediately whetted everyone's appetite.

Originally, there was a commotion in the classroom, but after Liu Yusheng's hand, it suddenly quieted down, and everyone's attention was focused on the slide, because it was the only light in the dark classroom.

The slideshow shows a set of photos, a closed room, a deceased who hanged himself, a close-up of the exterior of the room, a close-up of the deceased's expression, etc., a close-up of the doors and windows of the room, and so on.

Liu Yusheng's deep voice sounded in the classroom: "This is a closed room murder case, which occurred in London ...... 30 years ago" (to be continued. Mobile phone users, please browse and read, a better reading experience.