Chapter 256 The Third Clue

The captain of the Yuecheng Detective Team, Duan Tianshan, personally sent the results of the second autopsy.

Duan Tianshan is no stranger to Chen Yan.

Duan Tianshan originally served as the deputy captain of the Kunlun City Detective Team.

Four years ago, he was transferred to the Yuecheng Detective Team as the top leader.

Although Chen Yan was investigating a strange suicide case in Kunming City, Duantian Mountain was no longer there.

However, Duan Tianshan knew a lot about Chen Yan's legend.

Among other things, Wu Yanzhong, the captain of the Kunming City Detective Team, mentioned Chen Yan every time when he and Duan Tianshan had dinner.

Duan Tianshan has long had the idea of ​​getting to know Chen Yan.

However, Chen Yan is far away in Liancheng, so he can't just see him in person.

What Duan Tianshan didn't expect was that in just half a year, not only did he get to know Chen Yan, but they were now still working on a case together.

"Captain Chen, this is the autopsy report!"

Duan Tianshan handed the two reports to Chen Yan: "Captain Chen, you are really amazing."

At this moment, Duan Tianshan looked at Chen Yan as if he were looking at a monster.

"That black spot is the mark left after being pierced by a very fine gold needle."

"The gold needle itself is as thin as a hair, and it penetrates the skin. No one can feel the pain, and the traces left behind are minimal."

"You can find this..."

Wu Yanzhong said that Chen Yan's surveying skills were the only ones he had ever seen in his life and could not be matched by anyone.

Duan Tianshan originally felt that Wu Yanzhong was exaggerating.

Maybe it's really amazing, but no one can match it...

However, this time Duan Tianshan really opened his eyes.

The old detective who performed the autopsy on Zhang Yulin was named Huang Ci. He was 59 years old and had been doing autopsy all his life.

He is a national treasure of the Yun Province Detective Brigade.

When I heard that the Yuecheng Detective Team was going to conduct a new autopsy, I almost jumped up and stabbed someone.

"If there is anything wrong with the body I checked, you will take off my police uniform!"

If he hadn't known that Wang Min was from the Hua Guo Detective Corps and that Chen Yan was the man who investigated the strange suicide case in Kunming City last time, Huang Ci would have come over to fight.

As a result, the old comrade personally conducted a second autopsy overnight.

It was this second autopsy that convinced Huang Ci.

No more shouting and fighting.

"Residual components of a plant juice were detected in the spinal cords behind the necks of Comrade Zhang Yulin and Jin Nansheng, in the third and fourth cervical vertebrae."

"And this juice has a strong anesthetic effect."

"Here in Yun Province, many farmers use this kind of thing to relieve pain."

Real hammer!

Wang Min and Chen Yan looked at each other.

Chen Yan's reasoning is completely correct.

Accidental fire is an illusion.

The other party first restrained Zhang Yulin and then anesthetized him into high paralysis.

Afterwards, he robbed Jin Nansheng and caused a short circuit in the electric kettle, causing an electrical fire.

An accidental car accident is also an illusion.

Jin Nansheng had been anesthetized at the time and lost the ability to control the vehicle.

At this time, as long as the other party calculates the time and sets the speed, a car accident may occur.

Of course, this requires very precise calculations.

Two scenes, analysis completed.

Once the nature of the case is confirmed, it will be easier to handle.

Just be afraid, the nature of the case cannot be determined.

That Zhang Yulin is not called a sacrifice.

Even sleeping while on duty not only allowed Jin Nansheng to escape, but also caused a fire.

The same is true for Lin Gang.

Although an accident occurred while handling the case, it was still considered a work-related injury.

However, the murderer will always escape justice.

【Ding! The strongest police training system mission is released. 】

[Detecting an accidental murder case has a ten-day deadline. Complete the task and you will be rewarded with trace identification skills. If you fail or exceed the deadline, the task reward will be cancelled. 】

The nature of the case was finally determined, and the prompt for investigating the case sounded simultaneously in Chen Yan's mind.

Accidental murder case!

Sure enough.

The opponent uses hidden means to cause accidents and lead to death.

Chen Yan found evidence that the case was not an accident, but a murder.

Therefore, the system also launched reward tasks.

Trace identification.

Like autopsy, it is a professional classification among detectives.

When Chen Yan went to the police academy, he had this professional study direction.

According to internal and external service, this professional detective actually belongs to the internal service.

Most of the time, I work in the office.

However, they also go out into the field.

When there is a case, the first person to arrive at the scene is actually the detective of the trace identification team.

It is their business to collect evidence at the scene, protect the evidence, collect and analyze the evidence at the scene, etc.

Chen Yan's second detective team has a position of five on-site trace identification detectives.

However, this reward is not easy to get.

Chen Yan hasn't encountered a case with a ten-day deadline for a long time.

The longer the deadline given by the system, the more difficult it is to investigate the case.

This time, it seems to be a tough one.

"Team Leader Wang, the results of the video inspection are out."

The Yuecheng Detective Team and the Serious Crime Team of the Yun Province Detective Brigade have been divided into several working groups by Wang Min.

"How's it going? Is there anything unusual?"

Yesterday, after discovering that the traffic light control box had been tampered with, Wang Min immediately arranged for someone to check the surveillance video again.

The person in charge shook his head: "Same as the previous results, we have expanded the scope of the investigation this time."

"But there is still nothing to find."

"Half an hour before the incident, and from the incident until the detectives arrived, no suspicious person appeared in the surveillance at that intersection."

Wang Min had checked the video of the intersection when he came to Duyuecheng.

But, just like the feedback today.

No.

There are no valuable clues.

Chen Yan paused and looked at the person in charge: "Copy the video and I will watch it myself."

"Yes! Captain Chen!"

Some things cannot be found without watching them in person.

With ten days to handle the case, the difficulty of the case must be not small. Chen Yan has to personally handle one clue every day.

...

Ten minutes later.

Chen Yan started watching the video in the office.

January 16, 1:19 pm.

This was the time of the incident.

Bang!

In the video, accompanied by a loud bang, the two cars collided fiercely.

Jin Nansheng's car instantly pushed Lin Gang's car away.

The car rolled directly out of the surveillance range.

The front of Jin Nansheng's car was smashed, white smoke was coming out, and there seemed to be blood on the window after the airbag was deflated.

Rewind the video for half an hour.

It was raining heavily and the visibility was very poor.

In the video, only the traffic lights were flashing, and there were no vehicles on the road.

The quiet picture seemed to be still without the sound of wind and rain.

As time passed, there was probably a car passing every one or two minutes.

However, there was no one at the intersection.

This is not scientific.

The other party completed the traffic light control by tampering with the control box.

As a result, Jin Nansheng's car and Lin Gang's car both passed when the light was green, and finally the illusion of a car accident appeared.

According to the file records.

The control box of the traffic light was checked by the serious crime team of the Yunnan Provincial Detective Brigade.

Wang Min also saw it in person.

After the incident, it was locked.

Therefore, the other party must have been at the scene when the incident occurred.

In this way, he could relock the control box at the first time.

Although the control box is directly below the surveillance camera, it is a surveillance blind spot.

However, the surveillance camera is a 360-degree loop recording, and it is a spherical surveillance device.

The wide angle of the camera is nearly 160 degrees.

Is it possible for the other party to avoid the camera's shooting?

Theoretically, yes.

For example, this person always follows behind the camera and gradually approaches the control box, which is possible.

However, there is a problem here.

The camera is installed in an anti-reflective black glass cover.

From the outside, the camera cannot be seen at all.

How can the other party determine the direction of the camera?

How can you ensure that you are behind the camera?

Closing his eyes, Chen Yan leaned back in his chair.

The surveillance screen was flowing rapidly in his mind.

It was raining heavily, and the vision was not clear.

However, it was still possible to see clearly whether there was a human figure in the surveillance range.

After the incident, that is, at 1:22, a car passed by.

The car driver Li Kangmin called the police.

At 1:36, the detective who received the report arrived at the scene.

At 38, the ambulance arrived at the scene.

Between 1:19 and 1:36.

The murderer could only leave during this time after the crime.

According to the questioning of the reporter Li Kangmin, he was at the scene between 1:22 and 1:36.

It was this Li Kangmin who rescued Lin Gang from the overturned car.

According to his description, when he was there, he looked around and did not see anyone.

So, the murderer should have left three minutes after the car accident at 1:19 and before 1:22, when Li Kangmin's car passed the intersection.

Three minutes!

Chen Yan watched this three-minute video over and over again, but still found nothing.

This is so unscientific...

Three minutes after the crime, Li Kangmin's car arrived at the scene, Li Kangmin got off the car to make a phone call, the detective arrived, the ambulance arrived, and all the vehicles left...

Every car, every person, every detail appeared repeatedly in Chen Yan's mind.

At the same time, Chen Yan also asked for videos of an intersection on two roads to compare all the passing vehicles.

There is no village nearby.

So, all vehicles will definitely pass this intersection after passing the previous intersection.

If they don't pass this intersection, then it means that the car must have stopped in the middle of this road.

This is the suspicion!

But unfortunately, every car appears repeatedly.

And the time is very short, all within the normal driving time range.

Not only that, the posture of each car, the gap between the wheel arch and the wheel changes...

Wait!

No!

In Chen Yan's mind, the height of the two cars has changed.

What does this mean?

It means that the load of the vehicle has changed between the previous intersection and this intersection!

"Brother Wang," Chen Yan picked up the phone excitedly after a moment: "There are problems with the two cars!"

"Check the owner information of the car YunX125789, and...the car of the person who reported the case at that time...Li Kangmin!"