Chapter 200： Cyanide poisoning

Entering the scene, Chen Yan immediately began to investigate the scene.

【Ding! The task of the strongest police training system is released. 】

[Detect the cyanide poisoning case, within two days, complete the task, reward the skill of rock climbing technology specialization, and cancel the task reward if it fails or expires. 】

Rock climbing expertise?

The last reward was the Swimming Skill Specialization.

This time it's rock climbing skills.

Moreover, Chen Yan found that his own system, except for the first activation.

Each subsequent activation will be activated again when a homicide is encountered, and the task will be released.

As for other cases, the system did not give a task prompt.

For example, in this theft case, in the front, the system was calm.

Only now, when a murder occurs, has the task been released.

Putting down his thoughts, Chen Yan immediately turned on the olfactory gene lock, as well as the visual gene lock.

Li Yun introduced to Chen Yan the information he had obtained so far: "The identities of the four deceased have been preliminarily confirmed."

"Decedent No. 1, Wang Tianzhi, male, 36 years old, from Dan City, married."

"Decedent No. 2, Yu Lingfang, female, 32 years old, from Hulu City, married."

"According to the current information, Wang Tianzhi and Yu Lingfang are husband and wife."

"Deceased No. 3, Zhang Chuanmin, male, 40 years old, from Dan, deaf and mute, married."

"The 4th deceased, Yu Linghui, female, 32 years old, from Hulu City, suffers from dwarfism, married."

"Decedent No. 3 and No. 4 are husband and wife."

At the scene of the crime, four people sat around the dining table.

Detectives numbered the four dead in clockwise order.

The four people, Wang Tianzhi, the deceased No. 1, were crooked under the chair, the chair fell to the ground, and his hands were slamming the gap on the floor in the direction of the door.

Blood seeps through the nails.

The complexion is pale, and the subcutaneous mucosa is red.

More obvious reaction to cyanide poisoning.

The deceased number 2 was slumped on the chair, with no response to struggle, his legs were stretched, and his eyes were opened and closed.

The deceased No. 3 was under the table, he should have disengaged from the chair and climbed a distance of about one meter.

On the dining table, the tableware of the deceased No. 3 spilled on the ground and shattered.

His body was stained with hot pot soup, and there were broken porcelain bowls on the ground.

The deceased No. 4, who was smaller in stature, was also sitting on a chair with his arms folded and his back against the seat.

Visually, the height is only about one meter. The figure on the chair, the calf is hanging in the air, and the face is flush with the desktop.

All four had bright red skin.

Signs of hyperemia of the subcutaneous tissue are very obvious.

Chen Yan twitched his nose lightly.

On the spot, there is a faint taste of bitter almonds.

The deceased should have died from cyanide poisoning.

Cyanide, the lethal dose is very low.

A grain-sized amount of cyanide, about three to five grams, can kill an adult quickly.

The lethal principle of this poison is actually similar to that of carbon monoxide poisoning.

However, the speed of death after poisoning is faster, and the rescue is more difficult.

As for the smell of cyanide, the so-called bitter almond smell, not everyone can smell it.

For example, if you put a bitter almond in front of you, some people may not be able to smell it.

However, this smell, according to Chen Yan, may be more appropriate to describe the smell of swimming pool water.

"How did the landlord discover the dead?"

Chen Yan squatted down and carefully checked the condition of each deceased.

"This landlord has returned to his hometown in Tieshi in the past two days, and he only came back last night."

Li Yun introduced the situation on the side.

It turned out that after the landlord came back last night, he heard from the street office that the police had been investigating the dwarf personnel in the past two days, and they came to greet the resident in the morning.

"As a result, after knocking on the door for a long time, the people inside didn't open the door."

"On the phone, I heard a phone ringing inside, but no one answered. The landlord realized that something might have happened."

"Also, the landlord was very careful, called the neighbors, opened the door together, and then called the police."

Chen Yan nodded.

The process is not complicated.

The landlord not only called the neighbors, but also recorded the video with his mobile phone.

So, the whole site is very well preserved.

The cause of death of the four people has been determined, and the time of death is about 12 hours.

That is, last night, around 12 o'clock, he died.

...

three hours later.

The meeting room of the Detective Unit 2.

Chen Yan held the first case analysis meeting.

"As for the relevant situation, I have just reported to the Liancheng Detective Team and the Provincial Detective Team."

"According to the instructions of the superior, the relevant cases are still handled by me."

"However, it was transferred to the special case department of the Provincial Detective Brigade."

"Captain Li, let everyone know about the on-site investigation."

Li Yun immediately stood up and saluted, "Yes, Team Leader Chen."

At this time, Li Yun knew that Chen Yan's identity was no longer the captain of the grassroots detective team on the same level as himself.

It is the leader of the serious crime team of the Liaoning Provincial Detective Brigade.

In terms of name, it is natural to change.

Moreover, the case of the four deaths occurred in his own jurisdiction, and Li Yun was the most stressed of all.

"Based on information provided by the landlord, the identities of the four deceased have been established."

"Two couples, of which Yu Lingfang, the No. 2 deceased, and Yu Linghui, the No. 4 deceased are sisters."

"Yu Linghui, who died on No. 4, was a patient with dwarfism."

"The other two male deceased are from fellow villagers."

"Relevant basic information verification has been sent to the Dan City Detective Team to coordinate the investigation."

"Four people died at around 12 o'clock last night, the cause of death was cyanide poisoning."

"After preliminary inspection, it was found that cyanide was put into the hot pot ingredients and four people ate it, causing cyanide poisoning."

It took Li Yun ten minutes to report the basic situation of the deceased.

"Next, I'll make the work arrangement."

"First, after the video comparison and the identification of the cleaners in the imperial family community, we can basically confirm these four people, that is, on the morning of the 25th, Hu Yuefei's house was stolen, and on the morning of the 25th and the early morning of the 26th, two gold shops and a jewelry store The suspect in the theft."

Projection photo toggle.

On the left is the basic information of the four people, and on the right is the photo of the four people's poisoning scene.

"We were at the four people's residence and found the black tights they were using at the time."

"Head cover, hydraulic pliers, lock-picking tools, and planning drawings."

"According to the landlord's confession, Zhang Chuanmin, the deceased on No. 3, worked in a lock-picking company himself."

"These four people have been renting in his self-built house for five years."

"Five years ago, Wang Tianzhi, Yu Lingfang and Yu Linghui rented together."

"Four years ago, Wang Tianzhi introduced his countryman, Zhang Chuanmin, a deaf mute, to Yu Linghui, and the two got married."

"The four of them all came to Liancheng to work from other places."

Chen Yan pointed to the screencast photo: "Then here comes the problem."

"Why did these four people who were supposed to live their lives steal and plan so carefully?"

"Second," Chen Yan switched the projection again: "Everyone, look here."

On the projection screen is a plane photo of the crime scene of the deceased.

"Everyone, pay attention to the placement of the tableware on the table."

"It can be judged according to the location distribution of the deceased after death."

"When the four of us ate, the No. 1 dead person and No. 2 dead person were next to each other, and the No. 3 dead person and No. 4 dead person were next to each other."

"However, the distance between deceased No. 1 and deceased No. 4 is a bit too large."

"In this position," Chen Yan pointed to the position between Wang Tianzhi, the No. 1 deceased, and Yu Linghui, the No. 4 deceased: "There should also be a set of tableware here."

"That is to say, at the crime scene, there was a fifth person who ate together yesterday."

"However, the utensils the person was using disappeared and the chair he was sitting on was put away."

"So, it is very likely that this person is the murderer!"

"First," Chen Yan looked at Li Yun: "Captain Li, you arrange for someone to comprehensively check the surveillance video near the self-built house."

"At the same time, investigate the social relationships of the four deceased."

"Second," Chen Yan looked at Liu Qingshan: "Captain Liu, although we were at the scene, we found some evidence of the four people committing theft."

"However, no stolen goods were found."

"That means that either the four people hid the stolen goods after committing the theft, or they were transferred by the murderer."

"It's impossible to disappear out of thin air."

"You cooperate with Captain Li, and focus on investigating the four lives' trajectories, the use of vehicles, or whether there is any other rental information."

...

After half an hour, all work arrangements are over.

Chen Yan called Zhang Chaoyang.

"Chaoyang, take me to Junfa Media Exhibition Company."

Junfa Media Exhibition?

Zhang Chaoyang was stunned for a moment, but did not remember the name for a while.

"Junfa Media Exhibition Company?"

"Team Chen, what is this place, why does it sound familiar..."

"Of course it sounds familiar. This is the company that Wu Kaiyue works for."

At the crime scene, Chen Yan not only discovered the existence of the fifth person.

And it wasn't just the smell of cyanide that was found.

Not only did they discover the tools of the four men.

At the crime scene, Chen Yan even discovered a somewhat familiar smell.

It's just that the smell is very light.

It seems to be a personal item belonging to someone, as if it had appeared at the crime scene.

Not that person has been there.

Of course, these clues, although not as evidence.

However, it can guide Chen Yan in the direction of solving the case.

Junfa Media Exhibition Company.

In Wu Kaiyue's office, Chen Yan and Zhang Chaoyang met this well-dressed man with extraordinary temperament.

Regarding Wu Kaiyue, Chen Yan and Zhang Chaoyang don't know much about him.

However, it depends on who you are comparing with.

For example, compared with Wu Kaiyue's wife Hu Yuefei, Chen Yan and the others may have more information.

After all, Wu Kaiyue's illegitimate son is already two years old.

However, Hu Yuefei didn't notice it at all.

What's more interesting is that this child and the child's mother live in the house bought by Wu Kaiyue and Hu Yuefei.

What kind of simple character can a man who can make his mistress rent in the house he bought?

The point is, his wife doesn't know about it yet.

More importantly, it was also concealed for at least two years.

"Hello Mr. Wu, we meet again."

Chen Yan snorted slightly and confirmed again.

There was indeed a smell belonging to Wu Kaiyue at the scene of the death of the four robbers.

The truth, sometimes, is often right in front of you.

All impossibility is nothing but a fog to hide the truth.

Once it is peeled off, it is clear at a glance whether it is a human or a ghost.

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