Chapter 604

Team Leader Zhou didn't stop for a moment; as soon as he went out, he went to bring Tang Weili back to the police station.

If there were no suspects with a direct connection, the police might consider observing for a while. But Tang Weili was the deceased's ex-boyfriend; that connection was too special, and the level of suspicion rose directly to 8 million. It was only because we live in a society ruled by law that he wasn't sentenced directly.

On the other hand, although this case was not a locked-room murder, it was certain that the killer had meticulously planned the murder.

This method of killing was 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 could be explained as a crime of passion. Of course, the court might not necessarily accept that, but during the police investigation, one only needs to act within the legal framework; the thinking doesn't need to be legal thinking.

As a natural person, one can imagine that even if you carry a knife to meet someone, it doesn't mean you must kill them. But if you carry a bottle of carbon monoxide, the nature of the murder definitely increases exponentially.

You wouldn't be able to get that stuff without some effort.

Since the killer had planned to this extent, if the police were to engage in surveillance, it would only be giving the killer a chance to eliminate evidence.

Team Leader Zhou was even prepared for the possibility that Tang Weili wouldn't confess. After catching him, he immediately took the crime scene investigation team to search Tang Weili's home. At the same time, he mobilized manpower to sweep all the trash cans in the residential complex where Tang Weili lived.

Every container that looked like it could hold carbon monoxide was dug out.

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

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

"I didn't expect this chubby guy to have such good psychological quality," Mu Zhiyang remarked. "His own story is full of holes, yet he's still stubbornly insisting he's innocent. He's quite stubborn."

Mutton soup is the freshest. Whether you mix noodles or vermicelli into it, as long as it doesn't overpower the flavor, it's extremely delicious. In the end, as long as the shopkeeper skims the foam diligently and the secret recipe isn't too strange, it all depends on the quality of the mutton.

Just then, a phone call came to Yu Wenshu's phone.

"All the accounts under Wei Fengfeng's name have been checked..."

"... Your meaning is, the account isn't necessarily under his own name? We've also checked a few accounts of other people in their shop." Tang Weili said while looking for records. In the evening.

There are only three motives for crime: greed for money, sexual desire, and the desire for aggression. Economic status is naturally one of the key points of concern.

As for the fact that no electronic devices were used...

... Facts proved that Huang Qiangmin really was like that. He rode a bicycle from his own residential complex, straight to the complex where the victim lived.

Those with a worse temper were already pulling their hair out.

Mu Zhiyang said, "Living a good life, running such a big hot pot restaurant, who knows what the motive for murder is? If I had such a big hot pot restaurant, I'd get up at five every morning to cook hot pot to eat."

"Unless the victim Yue Ling sells the house, she can't fill the bottomless pit of her ex-boyfriend. Besides, what benefit does Huang Qiangmin get from killing her?"

"No news for now," Tang Weili checked and answered.

Wang Chuanxing clicked his tongue: "It's so delicious, I must try it too."

In Changyang City, behind the one-way glass that looked like something out of a TV drama, Jiang Yuan and the others looked at Huang Qiangmin's round face and round, small eyes, and all felt a sense of bouncy resilience.

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

Hanging up the phone, Yu Wenshu turned back and said: "The source of the carbon monoxide has been found. Under the account of an old employee of the hot pot restaurant, there is a record of purchasing carbon monoxide online. The old employee confessed that the account itself was registered by Wei Fengfeng, and it was usually kept in Huang Qiangmin's hands!" Watching Yu Wenshu's excited back as he returned, Wang Chuanxing was thoughtful: "No wonder he's a detachment leader."

Liu Wenkai said gloomily: "Marriage makes people grow up."

Along the way, the surveillance cameras weren't complete, but when passing through the checkpoints, they always captured his full face.

If one were to say that there is a fair point of competition between the police and the criminals, the psychological competition should be ranked first.

He had actually been thinking about it too. In terms of his own thinking mode, finding evidence is the first thing I need to consider.

Wang Chuanxing didn't expose him, but cooperated by tasting some of the pancake and praising it twice.

It's nothing more than two paths: online and offline.

Offline, you visit relevant shops; online, you check sales records.

The people around Huang Qiangmin were also questioned and investigated one by one...

As for why he went out at 5 o'clock in the morning, Huang Qiangmin couldn't explain it clearly, but he was still some distance away from giving up resistance.

The most important evidence in this case is carbon monoxide.

But this time, everyone, including Team Leader Zhou and the others, was anxious.

There were eight or nine people packed into the small room, and it was hot. Everyone was a bit restless and started discussing it:

Jiang Yuan said: "Expand further out and try our luck."

Wei Feng thought of the times he went to collect rent from shops in the past, seeing the shopkeepers who were struggling to manage their businesses, shifting and moving, trying all sorts of ways to find money to pay. He turned to Tang Weili and said: "Huang Qiangmin is a businessman; he might have more than one account under his name. Ask the hot pot restaurant employees, especially the one in charge of finance, to find Huang Qiangmin's other accounts and see if there are any records of purchasing carbon monoxide."

It's not that it's an inescapable net, but the net used by the police is something many ordinary people may have never seen. Like checkpoints, identification, fences, etc., many technologies didn't exist a few years ago, but now they've all appeared at once. The police officers themselves have to study and train; how would outsiders know so much?

Carbon monoxide can be produced by oneself; car exhaust or incomplete combustion can possibly produce carbon monoxide. Therefore, in terms of scarcity, carbon monoxide is not worth mentioning. It even exists in the air itself.

But the victim's method of death was acute. As everyone knows, there are usually three types of death caused by carbon monoxide: lightning-fast, acute, and chronic. The latter often requires half an hour of death time. A typical example is charcoal suicide; the death is very fast, belonging to carbon monoxide produced slowly, which effectively killed the person.

Online, it's said that a round has already been checked; offline, it's Team Leader Zhou who is checking.

"Yes." Tang Weili agreed and started making phone calls to arrange personnel. Since Jiang Yuan said it was trying their luck, they had to expand a bit more. Now that the case was basically in a state of being solved, they could indeed be a bit more unrestrained.

"How is the investigation into the source of the carbon monoxide going?" Jiang Yuan spoke up, interrupting everyone's discussion.

The criminal police first went through Huang Qiangmin's phone, checked his bank accounts and the flow of money, and the third team tracked his whereabouts. People, money, and objects were all arranged clearly.

"That hot pot restaurant is about to go bankrupt; the secret recipe isn't worth a fart."

Unfortunately, there were no gains.

To achieve acute carbon monoxide death, the concentration of carbon monoxide must be high enough and sufficient. It's very difficult for carbon monoxide produced by oneself to meet that requirement.

Jiang Yuan and his group went to eat Changyang City's mutton vermicelli. Facing a city of several million people, finding the killer is truly difficult. Saying it's like finding a needle in a haystack is a bit of an exaggeration; it's more like the difficulty of catching wild small yellow croakers.

"Yes, you can have it with some pancake. If you have a small appetite, just eating the meat and drinking the soup is fine. For those who have a cold, coming to this shop, slurping down a bowl of soup, blowing your nose a bunch, and half your cold will be gone." Yu Wenshu highly recommended it.

"The hot pot restaurant's secret recipe?"

Sitting in the mutton vermicelli shop, Yu Wenshu, who had finally found a reason to go home late, laughed and said: "In today's terms, this shop is a treasure shop I've collected. Sometimes when I go home late at night, I have to come here to eat a bowl of vermicelli before going back."

Yu Wenshu waved his hand: "I have to go back and check. You guys rest first, especially Wei Feng, you must get enough sleep. Alright, I'll go back to the police station first to see the specific situation. You guys come tomorrow to hear the results..."

"Could the two be secretly dating? The man's hot pot restaurant business is getting worse, and the promises made in the past can no longer be fulfilled?"

"People who do business are exposed all the time; it doesn't matter." Wei Fengfeng was holding a pad, which was full of documents.

Everyone was guessing, and what they said seemed to make some sense, but none of it was supported by sufficient evidence.

Actually, as long as he wasn't going home, Yu Wenshu would eat everything with gusto.

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

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

Especially for the prime suspect in a major homicide case, the treatment they receive is basically equivalent to that of a target of the US Internal Revenue Service's Criminal Investigation Division.

"The hot pot restaurant business isn't good; it's losing money." Tang Weili was looking at the latest news, flipping through the pages, and said: "The turnover of his shop isn't high, and there are more than thirty employees. The monthly labor cost is over 100,000, and the rent is about to expire. His economic situation should be quite miserable. Could this be the motive?"

That should have been in the killer's consideration. If it weren't for high-concentration carbon monoxide, once the victim realized something was wrong, they would have opened the door and come out directly.

Assuming Huang Qiangmin is the killer, how did he obtain high-concentration carbon monoxide?

It's still the theory of wild small yellow croakers; it's hard to find it in the vast sea. Now, they are specifically checking Huang Qiangmin's whereabouts. There is even facial recognition at the entrance and exit of his residential complex.

Yu Wenshu, who was preparing to go home, looked down at the number, answered immediately, and after saying a few words, a sincere smile appeared on his face.

And looking at the discussion from the perspective of a person in charge, it also illustrates a classic truth: reasoning is useless.

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