"What, apply for the special hardship student subsidy. Didn't you say that the two of them had a good family background? ”

Looking at Han Yu's bewildered look, the student who answered explained, "As long as it's money, who doesn't like it." Now groups of students want to get this money. On stage, he said with a handful of snot and tears that his family was about to be unable to open the pot and needed the money to help his family pay off his debts, but he took the money and immediately bought a mobile phone and expensive clothes after getting off the stage. And Jiang Zhiwen just applied for a subsidy, and after being seen by Tao Jialin, he also went to apply. And the two also dismantled each other, but none of them applied. ”

"It seems that it is a lucky thing to have a good roommate. Looks like I should go back today and thank my roommate for not killing. Hearing him say this, Han Yu turned around and said to the person behind him.

"And what about the other two, are they the best?"

"You mean Liu Zhuoxin and Xu Xiaolong, these two people are okay. But they are all withdrawn and don't like to talk to people. Liu Zhuoxin's family background is very bad, and his family is very poor. I don't look good at my parents. So he has low self-esteem, he always feels that others look down on him, and he usually goes alone As for Xu Xiaolong, the whole thing is a learning machine, and he is bent on studying abroad. Everyone doesn't understand the world, and no one cares if they greet him. So neither of them is very caring for people. But it's not as good as Tao Jialin and Jiang Zhiwen. ”

"Then who usually has a good relationship with whom in this dormitory?"

"I don't know, since we installed a computer in the dormitory, basically except for playing games in the dormitory every day, and then just going out to play with the object, how can we care about other people's dormitories."

"Okay, thank you, classmate, if there is any problem, we will trouble you again."

When Han Yu and his party were about to leave with a pile of evidence, the principal of the school stopped them: "Comrade policeman, this matter must not be spread outside. It's not good to say it. If the parents of the students knew that there was a serious homicide case in our school, they would not dare to fill in the application for the college entrance examination. ”

"This principal is right, people nowadays are very angry. The slightest thing is going to be beaten and killed, and there is a saying that impulse is the devil. If these people were not impulsive, they would not have caused such a tragedy. Han Yu and the others returned to the police station and handed over the evidence to the traces department. Coming to the autopsy room, Zhang Lanshan and Ye Lili were busy examining the four corpses, and Jiang Chonglang was watching from the side. Han Yu relayed what the principal had said when they were leaving. The above words are Jiang Chonglang's answer after listening to him.

"Just say a few words, when I send my mother back, I will say good things to you, so that my mother's impression of you is a little higher, don't give the sun to shine. I didn't eat well today, and I still have a second meal, so you have to behave well then. ”

Hearing her say this, Jiang Chonglang smiled and stopped talking.

After a busy night, the two finally completed the autopsy of the four bodies: "According to the degree of decomposition of the four bodies, the time of death should be a month to a month and a half ago, and the time of death of these four deceased people is about the same, but the cause of death is not the same.

The cause of death of the first deceased was arsenic poisoning because of the presence of arsenic-containing red wine in his stomach

The second deceased had obvious bleeding marks on his neck, hyoid bone and thyroid cartilage, a compression on his chest, and bruises on the inside of his head. So the real cause of his death should be mechanical suffocation, as for the knife in his chest, it was indeed stabbed after death

The cause of death of the third deceased was very simple, he was stabbed to the heart and died, but his skull also had the scars of being hit, he should have been knocked unconscious first, dragged into the cabinet and then stabbed to death

The cause of death of the fourth deceased was a heart attack. ”

"Brother Chong, Sister Lan Shan. I went to investigate. This year's summer vacation is on the morning of July 15, and there is a final exam in the morning, which all the people in their dormitory have attended. So their murder should have been after the 15th. The dormitories of the University of Europe are locked down during the summer vacation, and the students who stay on campus during the holidays have to move to the unified temporary dormitory by noon on the 16th. Therefore, the specific time of death of these people should be from noon on the 15th to before noon on the 16th. Han Yu reported.

"You don't need to deduce, in the hand of the third corpse, we have a stopped watch, the time on it is 1o25, this should be the time of his death, compared to the death time of several other people, it should also be around this time."

"Yes, the time of death is determined, and the detection of the case is much easier. You told me that there are many contradictions between the people in this dormitory, so this case is likely to be due to a big explosion of their contradictions, let's determine the identity of the deceased first. Then go to the students in the surrounding dormitories and ask what happened that night. ”

After DNA analysis of the sheets retrieved from the dormitory, it was proved that the four deceased were all members of the 123o3 dormitory: lying on the table, the arsenic poison was Liu Xinzhuo lying on the bed and was strangled to death, and then the deceased was stabbed again, Qin Jianping, the deceased was stabbed to death in the cabinet, Tao Jialin was under the bed, and Ren Haichao died of heart disease.

The test also proved that the knife on the tray under Liu Xinzhuo's table had blood stains on it from Tao Jialin and Qin Jianping. This knife is the murder weapon that killed Tao Jialin, and on this knife, as well as on the bloody clothes that appeared under the bed, Liu Xinzhuo's DNA appeared. In other words, Liu Xinzhuo is the murderer who killed Tao Jialin.

"Then could Qin Jianping also be killed by Liu Xinzhuo?"

"I don't think so, because he wants to kill Qin Jianping, just stab him with a knife. And Liu Xinzhuo is thin and small, not like he can strangle Qin Jianping to death. At that time, I had a lot of traces of the struggle on the body of the fourth corpse, Ren Haichao. Therefore, Ren Haichao is very likely to be the murderer who killed Qin Jianping. ”

"Qin Jianping was killed by Ren Haichao. I've heard about it, though. The two of them have a conflict, because the two of them have a crush on a girl at the same time, and because of this, the relationship between the two has deteriorated extremely. At night, the two were at odds and quarreled. It is not impossible for Ren Haichao to strangle Qin Jianping to death by mistake. ”

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