Chapter 201 Cyanide Poisoning

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

[Ding! The strongest police training system task is released. ]

[Solve the cyanide poisoning case. The deadline is two days. Complete the task and reward the skill rock climbing technical expertise. Failure or overdue will cancel the task reward. ]

Rock climbing expertise?

The last reward was swimming skill expertise.

This time it is rock climbing skills.

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

Each subsequent activation will be activated again when encountering a homicide case, and the task will be issued.

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

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

Until now, when a murder occurred, the task was issued.

Putting aside his thoughts, Chen Yan immediately activated the olfactory gene lock and the visual gene lock.

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

"Dead No. 1, Wang Tianzhi, male, 36 years old, from Danshi, married."

"Dead No. 2, Yu Lingfang, female, 32 years old, from Hulushi, married."

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

"Dead No. 3, Zhang Chuanmin, male, 40 years old, from Danshi, deaf-mute, married."

"Dead No. 4, Yu Linghui, female, 32 years old, from Hulushi, dwarfism patient, married."

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

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

The detective numbered the four deceased in clockwise order.

Of the four people, the deceased No. 1, Wang Tianzhi, leaned under the chair, and the chair fell to the ground. His hands were fiercely scratching the gap in the floor in the direction of the door.

There was blood seeping through his nails.

The face was pale and the subcutaneous mucosa was red.

A relatively obvious reaction of cyanide poisoning.

The deceased No. 2 leaned on the chair, without any reaction of struggle, his legs were straight, and his eyes were open and closed.

The deceased No. 3 was under the table, and he should have gotten off the chair and crawled about one meter away.

On the dining table, the tableware of the deceased No. 3 fell to the ground and broke into pieces.

The 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, also sat on the chair, with his hands folded and his back against the chair.

The height was estimated to be only about one meter, and the figure on the chair was suspended in the air with his calves and his face flush with the tabletop.

The skin of the four people was bright red.

The signs of congestion of the subcutaneous tissue were very obvious.

Chen Yan twitched his nose lightly.

There was a faint smell of bitter almonds at the scene.

The deceased should have died of cyanide poisoning.

The lethal dose of cyanide is very small.

Cyanide the size of a grain of rice, about 355 grams, can kill an adult quickly.

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

It's just that the death rate after poisoning is faster and rescue is more difficult.

As for the smell of cyanide, the so-called bitter almond smell, in fact, not everyone's nose can smell it.

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

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

"How did the landlord find the dead?"

Chen Yan squatted down and carefully checked the situation of each dead person.

"This landlord went back to his hometown in Tieshi these two days and came back last night."

Li Yun explained 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 were investigating the dwarfs these two days, and came to greet this resident in the morning.

"As a result, after knocking on the door for a long time, the person inside did not open the door."

"I called and only heard the ringing of the phone inside, but no one answered. The landlord realized that something might have happened."

"Besides, this landlord was quite careful. He called the neighbors to open the door together, and then called the police."

Chen Yan nodded.

The process was not complicated.

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

So, the whole scene was well preserved.

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

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

...

Three hours later.

The meeting room of the second detective team.

Chen Yan held the first case analysis meeting.

"I have just reported the relevant situation to the Liancheng Detective Team and the Provincial Detective Brigade."

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

"But it is transferred to the Provincial Detective Brigade's Major Case Team for special handling."

"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 squad at the same level as himself.

He was the leader of the Major Case Team of the Liao Provincial Detective Brigade.

The title naturally had to change.

In addition, the case of the death of four people occurred in his jurisdiction, and Li Yun was the most stressed among all people.

"According to the information provided by the landlord, the identities of the four deceased have been determined."

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

"The deceased No. 4 Yu Linghui is a dwarf patient."

"The other two male deceased were fellow residents."

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

"The time of death of the four people was around 12 o'clock last night, and the cause of death was cyanide poisoning."

"After preliminary inspection, it was found that cyanide was put into the hot pot ingredients and the four people were poisoned by cyanide after eating it."

Li Yun spent ten minutes roughly reporting the basic situation of the deceased.

"Next, I'll make work arrangements."

"First, through video comparison and the identification of the cleaning staff of the Imperial Family Community, we can now basically confirm that these four people are the ones who were stolen from Hu Yuefei's house on the morning of the 25th, and two gold shops and one jewelry store were stolen on the morning of the 25th and the early morning of the 26th. The suspect in the theft."

Projected photo switch.

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

"We found the black tights they used to commit the crime at their residence."

"Hood, hydraulic pliers, lock picking tools, and plans."

"According to the landlord's confession, Zhang Chuanmin, the deceased No. 3, worked in a locksmith company."

"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 Yu Linghui to his fellow villager Zhang Chuanmin, who is deaf and mute, and the two got married."

"The four of them all come to Liancheng to work."

Chen Yan pointed to the projected photo: "Then here's the problem."

"Why did these four people who were supposed to live their lives commit theft and plan it so carefully and meticulously?"

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

On the screen, there was a flat photo of the crime scene of the deceased.

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

"It can be judged based on the location distribution of the deceased after death."

"When the four of them were dining, deceased No. 1 and deceased No. 2 were next to each other, and deceased No. 3 and deceased No. 4 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 deceased No. 1 Wang Tianzhi and deceased No. 4 Yu Linghui: "There should also be a set of tableware here."

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

"However, the cutlery 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, arrange for someone to comprehensively check the surveillance videos near the self-built house."

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

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

"However, no stolen loot was found."

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

"Anyway, it's impossible to disappear into thin air."

"You cooperate with Captain Li and focus on investigating the life trajectory of the four people, their use of vehicles, or whether there is any other rental information."

…

Half an hour later, all work arrangements were completed.

Chen Yan called Zhang Chaoyang.

"Chaoyang, come with me to Junfa Media Exhibition Company."

Junfa Media Exhibition?

Zhang Chaoyang was slightly stunned, and did not think of this name for a while.

"Junfa Media Exhibition Company?"

"Captain Chen, where is this place? Why does it sound familiar..."

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

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

It wasn’t just the smell of cyanide that was found, either.

Not only were the tools used by the four people to commit crimes discovered.

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

However, the smell is very light.

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

Not that the person has been there.

Of course, these clues cannot be used 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 didn't know much about him.

But, it depends on who you compare with.

For example, 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 even more interesting is that the child and the child’s mother live in the house bought by Wu Kaiyue and Hu Yuefei.

What kind of simple person can a man be who allows his mistress to rent in a house he bought?

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

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

"Hello Mr. Wu, we meet again."

Chen Yan snorted slightly and confirmed again.

The smell belonging to Wu Kaiyue did appear at the death scene of the four robbers.

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

All impossibility is just a fog that hides the truth.

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