Chapter 632 Carbon Monoxide

Captain Zhou went out without stopping and took Tang Weili back to the police station.

If there were no suspects with direct contact, the police might consider observing them. But Tang Weili was the deceased's ex-boyfriend. This connection was too special, and the suspicion level rose directly to 8 million. If he was not sentenced directly, it would be a society ruled by law.

On the other hand, although this case was not a closed-room murder, it was very certain that the murderer had deliberately planned the murder.

This method of killing is fundamentally different from the victim being stabbed or hit on the back of the head with a club.

Being stabbed or hit with a club can be interpreted as passion killing. Of course, the court may not agree so, but during the police investigation, they only need to act within the scope of the law, and their thinking does not need to be legal thinking.

As a natural person, it can be imagined that even if you carry a knife to meet someone, it does not mean that you must kill the other person. But if you carry a bottle of carbon monoxide, the nature of the murder will definitely increase dramatically.

This thing is not easy to get without some effort.

Since the murderer had planned to this extent, the police's surveillance would only give the murderer an opportunity to eliminate evidence.

Captain Zhou even prepared for the possibility that Tang Weili would not confess. After catching him, he immediately took the spot investigation and searched Tang Weili's house. At the same time, he mobilized people to clean up all the garbage bins in the community where Tang Weili's house was located.

All containers that seemed to be able to hold carbon monoxide were turned out.

Unfortunately, there was nothing to gain.

But this time, including Captain Zhou and others, no one was in a hurry.

Facing a city of millions of people, it is really difficult to find the murderer. It is a bit too much to say that it is a needle in a haystack. That is also the difficulty of catching wild yellow croaker.

But if there is already a key suspect, the situation is different.

Especially the key suspects in key murders, the treatment they receive is basically equivalent to the target person of the Criminal Investigation Division of the US Internal Revenue Service.

The criminal police first checked Tang Weili's mobile phone, and at the same time checked his bank account and the flow of money. The third team tracked his whereabouts. The three things, people, money and things, were all arranged clearly.

The people around Tang Weili were also questioned and investigated one by one...

Not to mention the dragnet, but the network used by the police may not have been seen by many ordinary people, such as checkpoints, identification, fences, etc. Many technologies did not exist a few years ago, but now they appear in a flash. The police themselves have to learn and train, and outsiders don’t know so much.

As for saying that electronic devices are not used... Facts have proved that Tang Weili really did so. He rode a bicycle from his own community to the community where the victim's family lived.

It's still the theory of wild yellow croaker. It's hard to find it in the sea. Now we will focus on Tang Weili's whereabouts. There is also a facial recognition access control at the entrance of his community.

There are really not many people who go out at 5 o'clock in the morning.

Along the way, the surveillance cameras are not complete, but when passing the checkpoints, they are always full-face photos.

As for why he went out at five in the morning, Tang Weili couldn't explain it clearly, but he was still a long way from giving up resistance.

In front of the one-way glass in Changyang City, which looked like a TV series, Jiang Yuan and others looked at Tang Weili's round face and round eyes, and felt a kind of Q elasticity.

"I didn't expect this little fat guy to have a good psychological quality." Mu Zhiyang sighed: "His own words are full of holes, but he still insists that he is innocent. He is so stubborn."

"He is a businessman. He has been exposed many times, but he can't do anything." Wang Chuanxing held a pad in his hand, which was full of information.

Mu Zhiyang said: "You can't live a good life, but you opened such a big hot pot restaurant. I don't know what the motive is for murder. If I had such a big hot pot restaurant, I would get up at five in the morning to cook hot pot."

"The hot pot restaurant is not doing well and losing money." Wang Chuanxing was reading the latest news, turning the pages, and said: "The turnover of his store is not high, and there are more than 30 employees. The monthly labor cost is more than 100,000. Moreover, the rent is about to expire. His financial situation should be very bad. Could this be the motive?"

There are three motives for crime: desire for money, sexual desire and desire for aggression. The economic situation is naturally one of the focuses of attention.

There were seven or eight people in the small room. It was warm and everyone was a little restless. They started to discuss:

"Unless the victim Yue Ling sells her house, she can't fill the bottomless pit of her ex-boyfriend. Besides, what good would it be for Tang Weili to kill her?"

"Was this hot pot restaurant opened before or after the two broke up? Will there be any financial disputes?"

"What's the secret recipe of the hot pot restaurant?"

"This hot pot restaurant is about to go bankrupt. The secret recipe is worth nothing."

"Are the two secretly dating? The business of the man's hot pot restaurant has deteriorated, and the previous promise cannot be fulfilled?"

Everyone was speculating, and what they said seemed to make sense, but there was not enough evidence to support it.

Some people with worse personalities were already pulling their hair.

If there is a fair competition between the police and the criminals, the psychological competition should be ranked first.

When the criminal suspect is in self-doubt and torment, the police are actually in self-doubt and torment.

Looking at the discussions from the perspective of a person in charge can also illustrate a classic truth: reasoning has its uses.

"How is the investigation of the source of carbon monoxide going?" Jiang Yuan interrupted everyone's discussion.

"No news yet." Wang Chuanxing checked and replied.

In fact, he has been thinking about it. As far as his personal thinking mode is concerned, finding evidence is the first thing he needs to consider.

The most important evidence for this case is carbon monoxide.

Carbon monoxide can be produced by itself. Car exhaust or incomplete combustion may produce carbon monoxide. Therefore, in terms of scarcity, carbon monoxide is not worth mentioning. It's even in the air itself.

But the victim's manner of death was acute. As we all know, there are usually three types of death caused by carbon monoxide, namely lightning, acute, and chronic. The latter often takes half an hour to die. A typical example is burning charcoal to commit suicide. Death is very slow. Carbon monoxide is slowly produced and kills people slowly.

To achieve acute death from carbon monoxide, the concentration of carbon monoxide must be high enough and abundant enough. It is difficult for the concentration of carbon monoxide produced by oneself to meet this requirement.

This should have been in the murderer's mind. If it weren't for the high concentration of carbon monoxide, the victim would have opened the door and come out as soon as he realized something was wrong.

Assuming that Tang Weili was the murderer, how did he obtain the high concentration of carbon monoxide?

It’s nothing more than two ways: offline and online.

If you are offline, you can visit relevant stores. If you are online, you can check the sales records.

Online, it is said that one round of investigation has already been carried out, while offline, Team Zhou is still investigating.

Jiang Yuan thought of the past when he went to his family's shop to collect rent. Those shopkeepers who were not doing well were moving around and looking for money to pay. He turned to Wang Chuanxing and said: "Tang Weili is in business, and he may have more than one account. You guys Ask the employees at the hot pot restaurant, especially the ones in charge of finance, to find out if there is any record of purchasing carbon monoxide from Tang Weili’s other accounts.”

"All the accounts under Tang Weili's name have been checked... Do you mean that the accounts are not necessarily under his own name? They have also checked several accounts of other people in the store." Wang Chuanxing said while looking for records.

Jiang Yuandao: "Expand further and try your luck."

"Yes." Wang Chuanxing agreed and started making phone calls to arrange personnel. Jiang Yuan said it was just luck, so it would have to be expanded a bit. Now that the case has basically been solved, it can indeed be more arbitrary.

evening.

A group of people from Jiangyuan went to eat mutton noodles in Changyang City.

The mutton soup is the most delicious. Whether it’s mixed with noodles or flour, as long as it doesn’t overpower the flavor, it’s still delicious. In the end, as long as the store owner froths the soup frequently enough and the secret recipe isn’t too weird, it all depends on the performance of the mutton. how's it going.

Sitting in the mutton noodle shop, Yu Wenshu finally found a reason to go home late and said with a smile: "In today's terms, this shop is my treasure store. Sometimes when I go home at night, Come and have a bowl of noodles first and then go back.”

Huang Qiangmin clicked his tongue: "It's so delicious, I must try it."

"Well, you can have some cakes. If you have a small appetite, you can just eat meat and drink soup. For example, if a person has a cold, he comes to this shop, slurps down a bowl of soup, blows his nose and blows a lot, and he can catch a cold. Half as good." Yu Wenshu highly praised it.

In fact, as long as I don't go home, Yu Wen's books will be delicious.

Huang Qiangmin didn't expose him, he tasted some cakes cooperatively and praised him a few times.

When it was time to go out, Yu Wenshu was still reluctant to leave...

At this moment, a call came to Yu Wenshu's mobile phone.

Yu Wenshu, who was about to go home, looked down at the number and picked up immediately. Without saying a few words, a sincere smile appeared on his face.

After hanging up the phone, Yu Wenshu turned around and said, "The source of carbon monoxide has been found. Under the account of an old employee of a hot pot restaurant, there is a record of online shopping for carbon monoxide. The old employee explained that the account itself was registered with Tang Weili's help, and he is usually in control of it. In Tang Weili’s hands!”

When he said this, Jiang Yuan and others also became happy.

Yu Wenshu waved his hand: "I have to go back and take a look. You guys should rest first, especially Jiang Yuan, and make sure you get enough sleep. Okay, I'll go back to the police station first to see the specific situation. You can just come and hear the results tomorrow. …”

Looking at the back of Yu Wenshu returning excitedly, Huang Qiangmin thought thoughtfully: "He deserves to be the detachment leader."

Liu Wenkai said quietly: "Marriage makes people grow..."