The contradiction is that Du Yiyi resisted participating in the party before, and when Hua Shuai did not convince her, she appeared at the party herself. Pen ~ fun ~ pavilion www.biquge.info this is almost impossible from the analysis of Du Yiyi's character, even if Du Yiyi suddenly figured it out, he would not attend the party without an invitation.

Su Cheng believes that this turning point should be an important clue to unravel Yu Hua's death.

Zuo Luo recognized: "Someone enlightened Du Yiyi, and at the same time, this person knows the character of the party owner very well, otherwise Du Yiyi would not have been allowed to participate in the party without being invited, and at the same time, this person also understands the relationship between Du Yiyi and his classmates." Otherwise, it will make Du Yiyi lose a little self-confidence that is easy to appear. ”

Su Cheng said: "Moreover, this person is a person that Du Yiyi trusts very much, even Hua Shuai did not convince Du Yiyi, he can convince Du Yiyi, which shows that the relationship between the two is not ordinary." ”

Zoro said: "Chemistry topper." ”

Su Cheng: "Chemistry teacher." ”

Teachers love top-notch people.

......

The chemistry teacher, a thin Sven man in his mid-fifties, faced interrogation, and he admitted that he had encouraged Du Yiyi to go to parties and socialize. On the day of Yu Hua's death, the chemistry teacher was indeed at school, but the chemistry teacher said that at half past eleven on the night of Yu Hua's death, he and two students were doing experiments in the laboratory of the chemistry building.

Two of the students, who are juniors in high school, confirmed that the three of them had dinner together and then went into retreat on a scientific paper. First prove their findings theoretically, then experimentally prove their findings. It's been in the test area since eight o'clock. During this period, the chemistry teacher left for about 20 minutes at 10:50, saying that he was going to the underground garage of the chemistry building to get the test samples, and they started the experiment at half past eleven, and they did not know that someone had jumped off the building until 1 o'clock in the morning.

Coincidentally, the elevator monitoring from the lab to the lower garage broke down that afternoon and was only fixed on Sunday. And the lab is right next to the elevator and there is no surveillance.

Although there were witnesses, the seven groups did not believe it at all, because for the sake of quiet, the chemistry teacher confiscated the mobile phones of the two, and the only way for the two to see the time was the wall clock on the wall, and the back of the wall clock was wiped clean, and there was no way to know if someone had changed the time.

A few days have passed, and the monitoring of the chemical building has not included the physical evidence in the inventory, and the physical evidence team has not been able to confirm whether the monitoring is vandalized. In the eyes of the seven groups, the chemistry teacher stole time and killed Yu Hua. According to the top chemistry students, the chemistry teacher is very good to the top students, according to their original words, he is a real dedicated teacher, quite protective of the calf, and when a famous top student is bullied, he will settle accounts with the bully, and ask the bully if he knows that the person you bully may become the next Mendeleev? He believes that educators have the obligation to protect gifted students, give them the best environment and treatment, so that they can become people who contribute to mankind. After Du Yiyi lost his scholarship and bursary, the chemistry teacher also discussed with someone from the Academic Affairs Office to see if he could re-evaluate it in a month. He said that Du Yiyi was one of the most talented students he had ever led.

Looking at the disciples of this chemistry teacher, there are really two of them who have become famous young scientists of our time, and one of them is also a major member of a famous scientific research team in Europe, which was once nominated for the Nobel Prize in Chemistry. Although he was defeated in the end, he was already quite powerful, and when he was interviewed, this disciple gave the honor to his chemistry enlightenment teacher, that is, this chemistry teacher.

But even if this chemistry teacher is a saint, he must be punished for committing a crime, and Su Cheng and Zuo Luo agree on this. Zoro is the defender of the law, and Su Cheng is the defender of the rules. It's okay for you to do bad things, but don't get caught. It seems that Du Yiyi is a good person, and Yu Hua is a bad person. In fact, Yu Hua is like a housekeeper who makes mistakes and is blamed. Du Yiyi is like a person who doesn't do housework, so she can't make mistakes. The students' understanding of the two is also subjective, and the chemistry teacher protects the calf entirely because Du Yiyi is a top chemistry and talented.

Su Cheng can be sure that Yu Hua will definitely not let Du Yiyi die, Du Yiyi's death, Du Yiyi himself needs to bear a lot of responsibility.

In addition, Su Cheng likes this kind of case very much, Su Cheng hates crimes of passion, there is no technical content, and this time it is obviously a premeditated crime, and it is the time to test his ability. The success rate of premeditated crime is very high, especially for such middle-aged men, even if there is no crime manager, they will be very thoughtful. For Su Cheng, it was a challenge.

Su Cheng guided the direction of the investigation, and the chemistry teacher became the biggest suspect, and the top priority was to find evidence to accuse the chemistry teacher.

This is another tedious work, and through the cooperation of the criminal police team and the police station, the seventh group got some video materials. In the first video material, on the third day after Du Yiyi's death, the chemistry teacher drove to follow Yu Hua, who was about to go home, and after talking a few words through the window, Yu Hua got into the chemistry teacher's car.

The chemistry teacher defended this, he was the teacher of Yu Hua and Du Yiyi's two classes, Yu Hua's grades were in the upper middle, and her grades fell after the start of school, the chemistry teacher talked to her privately, and the chemistry teacher sent Yu Hua to Yu Hua's rented single apartment.

Previously, the police questioned the chemistry teacher, and the chemistry teacher denied that he had a private conversation with Yu Hua.

The second video shows that the chemistry teacher appeared in the hospital in City B, and the police station in City B learned that the chemistry teacher paid 5,000 yuan for the hospital temporary workers to modify Du Yiyi's information.

The chemistry teacher explained that she found that Du Yiyi was wrong, and after a private conversation, the chemistry teacher suggested that she go to City B for an abortion.

But during the previous interrogation, the chemistry teacher insisted that he did not know that Du Yiyi was ever pregnant.

The third video is the chemistry teacher's neighbor, a newly discharged scout stalking Yu Hua, and the scout confesses that the chemistry teacher asked him to follow Yu Hua and asked him to take Yu Hua's mobile phone.

The chemistry teacher explained that after he went to City B, he learned that Yu Hua took Du Yiyi's medical records and deleted the data on his mobile phone, which was also to protect Du Yiyi.

Zuo Luo interrogated: "Teacher, what are you still hiding, it's better to talk together, we are also very hard." ”

The chemistry teacher apologized, "I'm sorry for causing you a lot of trouble, and I have nothing else to hide." I'm just trying to keep my job, so please understand. ”

Zuo Luo shook his head: "I'm sorry, I can't understand, now I officially accuse you of murdering Yu Hua on behalf of the police, this is a criminal detention notice." ”

The chemistry teacher said, "Shouldn't it be an arrest warrant?"

"We also need to supplement the investigation. ”

The police filed a complaint and explained the charges, and the chemistry teacher officially became a suspect and was restrained by Meda. On this basis, a supplementary investigation is carried out and sufficient evidence is provided to the prosecutor, and the prosecutor will issue an arrest warrant, and the police have no authority to issue an arrest warrant. Once the criminal detention is filed, you can apply to the court for a search warrant to search any private or common property of the chemistry teacher, but the time of criminal detention is limited, generally 48 hours, and you can apply for an extension, generally not more than three times, after the time, if the prosecutor believes that the current evidence does not meet the requirements for arrest, the arrest warrant will be refused, and the chemistry teacher can only be released, and the chemistry teacher cannot be criminally detained because of this case, but the arrest warrant can be issued directly after supplementing the investigation.

The chemistry teacher took the criminal detention notice, sighed lightly, and said, "To tell you the truth, I really want to kill Yu Hua if I know the truth, but you overestimate the courage of an ordinary person, especially a scholar. I didn't kill the flowers. ”

......

Seeing the chemistry teacher being taken away, Su Cheng stroked his forehead: "Zuo Luo, why are you drilling with me this time?"

Zoro packed up the papers: "Maybe it's because you're right every time. ”

Su Cheng shook his head: "I still have the confidence to think that he is a murderer, but I hate that you put the treasure on me." Like a child who is expected by my parents, I hope that my parents will have no love for me, and that my occasional glow can make them happy. ”

"I've been desperate for you kid for a long time. Zuo Luo said: "The geese have left a voice, and there will definitely be traces." Why, because I believe in you this time, you don't have confidence anymore?"

Su Cheng nodded: "It seems to be so." ”

......

The chemistry teacher has a stake in a company, a real estate, a garage, and a member of the fishing clubhouse, and all properties are searched and found to have long hair, DNA tests for hair follicles, and hair for hair follicles. Mobile phones, computers, cloud drives, social software, bank accounts, etc......

Forty-eight hours passed, and during the search, the police found that the chemistry teacher used computer social software to contact a student abroad, and the contact content was deleted, and the data was recovered by the technical department through the help of the social software company. The chat probably said that the student was a bastard, had been in prison for two years, and later settled in Italy, where he was not a troublesome person and had ties to the local gang. The chemistry teacher contacted him and asked vaguely, but it could be seen that the chemistry teacher was asking for some tips on destroying corpses, and he also mentioned gannets. The student told him that gannets could do anything, but the price was very high, and that to get in touch with the gannets, he had to ask his friend's boss for help. The chemistry teacher said forget it. The student asked the teacher if he was in trouble, but he said that he would help if he could. The chemistry teacher said it was fine.

The second piece of evidence against the chemistry teacher was that the chemistry teacher had a professional thief's lockpicking tool in his home, and a pair of rubber gloves were found sealed in the toilet tank in the bathroom. Watch the news to know what is called a professional lock picking tool, professional thieves use such a tool, and the key is equivalent to the time to open the door of a word or cross lock.

The chemistry teacher was interrogated, and the chemistry teacher admitted that his purpose was to get Yu Hua's mobile phone, and he said that Yu Hua would go to the indoor swimming pool of the rented bachelor apartment every Wednesday and Thursday night, and he wanted to take the opportunity to enter Yu Hua's apartment and take away the mobile phone. But because I didn't have enough guts, I didn't do it.

Circumstantial evidence was already very abundant, especially the several perjuries of the chemistry teacher put him at a disadvantage.

"It's all circumstantial evidence, is there any direct evidence?" At the meeting, Zuo Luo asked everyone: "For example, at the time of the crime, the chemistry teacher appeared in the teaching building, or before and after the crime, the chemistry teacher and Yu Hua met and communicated?"

Everyone was silent, and Song Kai asked, "Head, how sure are we in terms of this evidence at present?"

Zuo Luo said: "I am sure, there is really no new evidence, and the prosecutor is willing to sign the arrest warrant, but in court, as long as the opposing lawyer is not blind, he can know that this is circumstantial evidence, at most it can prove that the chemistry teacher really wanted to kill Yu Hua, but did not take action." ”

Su Cheng said: "The chemistry teacher is fifty years old this year, it can be said that there are students from all walks of life, since he has the heart to buy evil, and contacted the students in Italy, will he suddenly remember that there are bad students in the local area, maybe he can help him get it?"

Zuo Luo shook his head: "I don't drill this horn, either he is innocent, or he does it himself." It's a very simple logic, if the chemistry teacher buys the murderer, he will definitely create a perfect alibi that will not be suspected. ”

Su Cheng nodded and admitted: "Makes sense." This case is a bit of a dead end...... Did the physical evidence team inspect the flower apartment and confirm that the chemistry teacher did not enter the apartment where the flower was too flowery?"

Zuo Luo looked at the time: "It's more than three o'clock, they should go over now, Su Cheng, let's go and have a look, you can sort out the information, and visit those who should visit." ”

Zuo Luo's words were a little weak, and everyone muttered in their hearts.

......

Getting into the car, Su Cheng naturally also raised questions, Zuo Luo said: "Su Cheng, I don't think your set is good, it's really not powerful, it's not the right way, I feel that there is no place to use my strength." ”

Su Cheng asked suspiciously: "Then you should stick to your own style." ”

Zuo Luo said: "Big brother, you have been slapped in the face many times, I won't accompany you to drill the horns, am I not stupid?"

Su Cheng said: "Did I tell you that in the autobiography of Big Pineapple, it was mentioned that detectives sometimes need luck to solve crimes, and for murder cases, the detective's solving rate is not very high, even if the famous detective solves the case at the highest is only 70%. Of course, in addition to 100% at home, police in other countries have a lower rate of solving murders. ”

Murder, there is a mind and action preparation, and at least some counter-detection means will come to mind.

Zoro said helplessly: "I hope that the physical evidence team can give me some good news now." ”

The physical evidence team is looking for clues in the single apartment, fingerprints, DNA, footprints, etc., there are basically no fingerprints with rubber gloves, although the weather is hot and humid, and you will sweat when you sneak in, but sweat belongs to broken DNA, and linear DNA identification must be done, and you need to have a certain amount of luck.

Yu Hua's apartment had been initially searched, especially the computer, but there was no carpet search, and he didn't even pay attention to anything else. So, as luck would have it, I found something inside the teddy bear.

But is it good luck or bad luck?

The physical evidence team picked up the things and looked at them, and they threw them on the bed, shouting: "Withdraw, everyone leave immediately......"

Paralysis, what is so tense? Su Cheng stretched out his head and saw that it was a very professional glass tube, and there was a small piece of metal in it, and the glass tube had cracked. The two ends of the glass tube are metal sleeved glass tubes, and there is a nuclear warning sign on the sleeve head. So Su Cheng turned around and ran, and went to the ......

News, in order to take revenge on the girl who changed his mind, a college student gave her a necklace, and three policemen came into contact with the necklace. The college student died soon after being radiated, and the three policemen were tormented by the disease for several years.