Police Detective

Analyzing this case, no one has a clue.

The first is to analyze the scene.

Almost all the furniture on site had a similar level of dust, indicating that no one had entered the home for a long time.

The door was open and had been open for several hours. There was no heating in the room, but it wasn't too cold. It was at least thirteen or four degrees and very humid. If you turn on the heating, you will have to pay at least several hundred yuan more for the four months of winter, which Xiao is not willing to pay.

In this kind of residential building, if the sealing is better, it will not be too cold even in winter, because there is basically heating all around. But if there is no heating in the house in winter, the house will be very humid, but for the unkempt Xiao, this is not a big deal.

Specialized footprint experts came to the scene, and Wang Huadong also went to the scene to carefully investigate for more than an hour. Everyone came to the same conclusion - this was not the first scene.

What is certain is that the evidence in this house has been preserved very well, without any unnecessary changes. Because there was a thin layer of dust, it was certain that there were only Xiao's own footprints in the house, and no other people's footprints were even found on the outside of the door.

This is the fourth floor, the windows are sealed, and there have been no recent changes.

The poison test came back quickly - cyanide poisoning.

To be precise, it is cyanide poisoning caused by inhalation, not consumption!

The food has been tested and there is nothing wrong with it.

The camera here is still not clear enough, but it can be concluded that Xiao opened the door and entered the house alone with the key. Then less than half an hour later, he opened the door and walked out, and then entered the blind spot of the camera and entered the corridor.

There is no way to tell from the video whether he was poisoned when he came out, but judging from the scene, he should have been poisoned after leaving the house. Judging from the video and time of death, Xiao should have died within an hour after entering the corridor.

So, why did Xiao come out of the house?

How did you get poisoned after you came out? What happened in the corridor?

Who would do such a thing? What's the motivation?

People are walking in the corridors here now, and now you can see the footprints of many people in the corridors. Because the windows are closed in winter, there is no wind in the corridors, and the footprints from a few days ago are still there. There are not many people walking down this corridor. Now we are checking the condition of all the people who have walked down the stairs within a week and the condition of their shoes.

But there is also a very unfortunate situation. After the first wave of police arrived, the windows were opened for ventilation for a while, and there were some changes in the corridor.

This is not the fault of the police. The person who called the police said that they found the person might still be alive. When the police came, their first reaction must be gas poisoning. There was nothing wrong with opening the window.

The man was later found dead and the windows were closed, but the consequences of the northwest wind still have to be considered.

"Where is the interpersonal relationship diagram of the deceased?" asked detachment Zhuang.

"Bring it over in a moment. This is not easy to check and it will take time." Zhao detachment said.

"Is the interpersonal relationship too complicated?" Team Zhou of the second team of the first team frowned.

"No, it's a bit simple, but it's hard to check. His interpersonal relationships are relatively fragmented. There are five types of people he knows. These five types of people don't know each other very well. One is parents and relatives who have cut off contact, and the other is He has only a few friends with whom he has a good relationship. The third is his colleagues from the previous agency, the fourth is a few clients, and the fifth is friends in the game. So far, he has not found anyone who has such a big enmity with him. "Zhao detachment said: "Speaking of which, he had a fight with the guards at the detention center this morning, saying that the guards were targeting him, but nothing happened."

"Where is the source of the cyanide? Is there any progress?" Zhuang detachment then asked: "Has suicide been ruled out?"

"It has not been ruled out. The problem now is obvious, that is, the source of the cyanide has not been found. If Xiao got some hydrogen cyanide liquid by himself, and then ran to the corridor and smelled it to commit suicide, that is the only explanation at present. The general situation." Zhao detachment packed up the few materials in hand.

Detachment Zhuang looked at Bai Song, who looked directly into Detachment Zhuang's eyes and shook his head.

Several people from the fifth team, Wang Liang went to check the surveillance, Sun Jie went to cooperate with the autopsy, Wang Huadong went to investigate the scene, and Liu Shuyuan was summarizing and compiling other information. The clues sent to him so far are not enough. Detachment Zhao is right. Although suicide is a very nonsense statement, only suicide can explain it clearly.

Hydrogen cyanide was used in Sun's suicide case. This substance is actually quite unstable. Its industrial uses are electroplating and mining, and it is rarely readily available. This thing can spontaneously ignite in the air, is extremely volatile, is unstable, and cannot be stored for a long time. Even if it is placed in a cylinder, it can be stored for about three months at most, otherwise it will easily explode when used.

Sun's case is easy to understand, and with Zhang Che helping him, it's still easy to get.

So what's going on with this case?

Moreover, Xiao’s background is very clear, because he plays games, and basically all his game accounts have been checked out. He has done nothing else in the past few years. He just idles around, works as an agent at work, plays games after work, and occasionally plays games. Skip get off work and play games, stay up all night

Could this lead to death?

Team Zhao was a little unhappy. The expression Team Zhuang looked at Bai Song just now made him slightly uncomfortable, but at this time he was also helpless because the case was like this.

Because Xingang District is close to the sea, and the population is unevenly distributed, with many construction sites and a large population from other places, it has encountered several murder cases every year in the past few years. This is normal, but most of them are simple.

The Zhao detachment originally thought that the difficult case they encountered last time was an exception, but they did not expect to encounter another case this time.

Moreover, 2015 is only a week away, so all the murder cases in 2014 will be solved.

Detachment Zhuang looked at Bai Song again and found that Bai Song had no expression and said, "I will report to the leader later."

Ask for instructions frequently and report frequently. This is the only rule.

Team Zhuang made a phone call in front of everyone and explained the situation.

"What's going on with the police who opened the window at the scene? Ask them to write a description of the situation later." Bureau Wei said clearly on the phone: "Do you have enough manpower over there? If the case is difficult and complicated, you can bring the fifth team over."

"They were just brought here directly." Detachment Zhuang said: "The report on the case has not been issued yet, and the cause of death cannot be determined."

"I understand, just wait for my news." Director Wei hung up the phone.

Detachment Zhao's face was very ugly, not because Director Wei valued Bai Song, but because it was very troublesome to let the policeman who opened the window write a statement of the situation. This matter could be small or big! In front of this matter, he didn't think about other things at all.