Chapter 140： Is human nature good or evil

crime scene area.

Chen Yan, Qin Chuan, Huang Guojun, and the entire team were basically there.

The outermost layer of the smoke exhaust hole is a protective cover to prevent cold wind from pouring in and waterproof.

After the protective cover is removed, it is a one-way locking iron piece.

"Look here," Chen Yan pointed to the one-way locking iron: "Everyone knows the function of the locking iron."

Chen Yan squeezed his fingers slightly and lifted the iron sheet: "Everyone, look, there is a faint half-moon-shaped scratch on the surface of the iron sheet."

Qin Chuan stepped forward to check it out in person.

The scratches are very light, almost invisible.

If it wasn't for Chen Yan's reminder, Qin Chuan could hardly see it if he watched carefully.

Huang Guojun also stepped forward and looked at it, wondering: "Chen group, this scratch... is it left by the murderer?"

"But how did he let the water heater exhaust gas back up?"

Huang Guojun completely blocked the iron piece: "If the iron piece is completely blocked and the oxygen-containing air cannot get in, the water heater will automatically turn off."

Chen Yan nodded: "That's true, but what if the murderer can still make the iron piece open and close in one direction?"

"Everyone, under normal circumstances, this iron sheet can be pushed open by the exhaust gas discharged from the water heater."

"However, if you increase the weight of the iron pieces, like this..."

Chen Yan took out a small semi-circular black block to show it to everyone.

"magnet?"

Li Yang was surprised.

"Yes, it's a magnet!"

After Chen Yan adhered the magnet to the iron sheet: "Liyang, go to the room, turn on the hot water faucet, and let the water heater work."

"At the same time, close the doors and windows, and use an instrument to detect the concentration of carbon monoxide in the room."

...

After a while.

The water heater starts.

The iron sheet that should be opened smoothly originally, due to the adhesion of the magnet, has increased its weight, and now it cannot be pushed open by the exhaust gas discharged from the water heater.

Chen Yan took off the magnet, the weight of the iron piece was reduced, and it was pushed away by the exhaust gas.

Chen Yan slammed the magnet against the wall, took off half of it, and attached the iron again.

At this time, although the iron sheet can still be pushed open by the exhaust gas again, the push rate is obviously much smaller.

Only about one-fifth of the original size.

A quarter of an hour later.

Li Yang ran out of the room and looked at Chen Yan with a look of surprise: "Chen group, the concentration of carbon monoxide in the room has risen!"

The root cause of carbon monoxide poisoning has been found!

The murderer used a very simple device to achieve the desired purpose.

A small magnet.

The opening and closing degree of the one-way iron sheet becomes smaller, which can not only block the exhaust gas and discharge it into the room, but also ensure that a certain amount of aerobic air enters the water heater.

Keep the water heater running.

wonderful!

If it weren't for the one-way locking iron, there were some scratches left by the magnets, which Chen Yan would never have imagined.

But don't underestimate this.

The direct cause of death of the deceased was carbon monoxide poisoning.

However, how did the four deceased get poisoned?

Whether or not the murderer can be caught or the case solved, these are all mysteries that must be solved.

Even if the murderer is caught, if the other party doesn't tell him, the detectives will not be able to think of what the murderer did, and you won't be able to finalize the case for him.

Why?

The direct cause of death of the deceased should be carbon monoxide poisoning.

To put it simply, the murderer later broadcast live in the WeChat group.

It was to dress the corpses again, to set up the shape, and to arrange the last supper, and finally to turn the four corpses into dolls.

In fact, it is an insult to the corpse.

And according to the time of the video, and the time of the deceased's death.

People who play with corpses and start livestreaming dolls are not necessarily murderers.

Because the cause of death was carbon monoxide poisoning.

Poisoning is the root.

The rest are clues from the detectives, just clues to find the murderer.

And now, the most important link in the chain of evidence has been cracked.

Return to Hulu City Detective Team.

It was 6pm on the 12th.

Qi Yuansheng brought further clues.

32 group members who watched the video, all contacted.

Among them, one happened to be in Hulu City.

interrogation room.

"I really didn't know it was a corpse..."

In the monitoring room, Qi Yuansheng was introducing Chen Yan and Qin Chuan.

"This person's name is Yang Qi, 24 years old, a hungry deliveryman."

"I like dolls since I was a child. Two years ago, when I watched the live broadcast at night, I saw a video of Zhao Mingwei playing with a doll. I am a fan of Zhao Mingwei."

"Two years ago, I joined the WeChat group organized by Zhao Mingwei."

Ask indoors.

"We're just looking for you to find out about the situation. As for the live broadcaster, have you seen him in person before?"

"Really not," Chen Qi cried, his body trembling slightly: "We are a group with common hobbies."

"Everyone usually shares their dolls in the group."

"They haven't seen each other, and during the live broadcast, they all wear masks and don't show their faces."

"Ask him, why didn't he show his face on the live broadcast?"

In the monitoring room, Chen Yan instructed the detectives in the interrogation room through the wireless microphone.

There are very few who do not show their faces in live broadcasts.

Why live?

Don't you just want to be famous?

Don't show your face, what are you doing live?

Of course, some broadcasters create a personal setting that is private, but Zhao Mingwei is a doll, so it's not enough.

"Why don't you show your face in the live broadcast?"

As a result, just after the detective finished asking, Chen Qi's eyes were dodging, and he was hesitant to speak.

"This this……"

The detective who asked was also a veteran, so he naturally saw that something was wrong with Chen Qi.

"Chen Qi, I think you need to understand something."

"The live broadcast you watched on August 9 was not an ordinary doll dress up, but a major live broadcast killing with a particularly bad influence!"

"As a witness, you didn't find out, didn't stop it, and you were even willing to watch!"

"Chen Qi, until now, are you still hiding it?"

"No, no!" Chen Qi was obviously frightened.

"I'm not hiding it, or... I'm just too embarrassed to say..."

After half an hour.

Chen Qi completely gave up.

how to say.

Their group...

Not very formal.

The reason why there are fewer people in this group is because they smell like each other.

"When we broadcast live, we sometimes interact with dolls... to interact..."

"You know, I'm single..."

"Many of the dolls we buy are real dolls of humanoids..."

"Also, the group owner plays more openly."

"The girl that day, the young one..."

"The group owner has prescribed medicine before, and showed us..."

"So, we didn't pay attention that day, thinking that the group owner came to play that way again..."

"By the way, he also messed with his brother..."

"His brother?"

The detective who asked Chen Qi's expression changed from surprise to shock.

"It's his brother, you don't know, his brother doesn't look like a man, he looks very beautiful..."

"However, that one doesn't seem to be his own brother. During the voice chat, I heard that it was adopted by his parents, and it was no more than a dog raised by him..."

"By the way, a few months ago, the group owner drank too much and said that his girlfriend turned out to be his sister-in-law, and he also said that he played with two sister-in-law or something."

"However, we didn't believe it, he should be bragging..."

Monitor indoors.

The crowd fell silent for a while.

Whether it is Qin Chuan or Huang Guojun, they are both old detectives.

I have seen bizarre things, and bizarre people have gone.

However, today's kind of contact is really the first time.

Hearing this, there was some silence.

Although Chen Yan has been in the police for a short time, he has experienced many cases.

Chen Yan's experience of human nature is not necessarily lower than that of Qin Chuan or Huang Guojun.

Liang Wenyuan, the murderer in the case of dismembering his wife and killing his wife, why did he kill?

Professor Yang Chenghan in the Scarlet Cross case, why did he kill?

But it's just three words, it's hard to calm down!

Good people can be bad people sometimes.

Bad people, sometimes not necessarily just bad people.

Let alone who killed Zhao Mingwei.

As far as Zhao Mingwei's actions are concerned, it may be difficult to link up with good people.

Is human nature good or evil?

At this moment, Chen Yan suddenly thought of Zhao Danyang.

The man with long and narrow eyes, long eyebrows, and a feminine and beautiful face.

Suddenly, Chen Yan understood why he was hysterical and why he was crying.

On the one hand, it is the grace of parenting On the other hand, it is bullying for more than 20 years.

How to do?

However, no matter what, Chen Yan is going to see this Zhao Danyang again now.

Some of the things that Chen Qi said, he wants to verify.

Although, Chen Yan knew that when he left, he would once again unravel Zhao Danyang's scars.

However, the case is still to be solved.

In particular, Chen Qi mentioned the information that Zhao Mingwei once mentioned after being drunk.

Ding Suxi...

Is it really related to Zhao Danyang?

Also, the two sisters-in-law... what's going on?

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