Click.

Projection switching.

They are two sets of tire marks.

"We collected a total of two sets of tire marks at the scene."

"The first set of tire marks are the tire marks of a tricycle."

"We compared the tricycle owned by Wang Fugui and his wife and can confirm that the tire marks on the tricycle belong to them."

"The other set of tire tracks is weirder."

"Everyone look at the screen..."

Click, switch to screen projection.

Appearing above are four tire marks.

"Of the four tire marks, the two in the middle are consistent, but the two on the sides are inconsistent."

"Team Leader Chen, the general situation at the scene is basically these."

Chen Yan nodded.

Get up and walk to the whiteboard.

"Based on the current situation we have, we first need to confirm the identity of the deceased."

"Judging from the degree of damage to the deceased's body, the murderer either had a deep grudge against the deceased, or deliberately damaged the body to mislead our investigation."

"Now, let me arrange the work for the next stage."

"Captain Zhao, please do your best and divide all the detectives of the Fourth Detective Squadron into five groups to follow up on my next deployment."

Zhao Haiyang stood up and saluted: "Yes, Team Leader Chen"

"The first group is responsible for tracing the origin of the necklace around the deceased's neck."

Click.

The screen projection switches to a photo of the necklace around the neck of the deceased's body.

"This necklace is the only thing on the deceased's body."

"The material of the necklace is gold, and here... there is a brand logo."

"The first group is responsible for finding out the origin of this necklace, who bought it and where it was bought from."

"It is impossible that the murderer did not notice the existence of this necklace when he killed the deceased."

"However, he still kept this necklace, which shows that the possibility of the other party seeking wealth is relatively small, and the possibility of vendetta or love killing is relatively high."

"If you find the necklace, it will be possible to identify the deceased."

"The second group visited various plastic surgery hospitals in Shen City."

Click.

The projection screen switched again: "Look here, everyone, the deceased's nose was cut off with a sharp blade."

"The nasal bones are exposed, but there are traces of friction on the deceased's nasal bones. From this point of view, the deceased should have had plastic surgery on his nose before his death."

"Trace all the hospitals in Shen City that can perform nose plastic surgery and see if we can find out the identity of the deceased."

"At the same time, the third group followed up on the severed fingers on the deceased's feet. Judging from the scars on the deceased's toes, they were similar to surgeries done in the early years. In major hospitals, they searched for all people who had undergone fourth toe removal surgeries.

Check identity.”

"The fourth group... trace the origin of the thorn strips in the body of the deceased."

The projection changes again.

"This kind of thorn strip is a common wild thorn shrub. However, because of its sharp thorns, even in rural areas, most people will not collect it for fire."

"So, no one does this kind of thing when nothing happens."

"Check to see if there are any such thorn bushes near the place where the body was dumped."

In fact, judging from Chen Yan's judgment, the deceased's fatal injury should have been caused by excessive bleeding after being pricked by a thorn stick.

The murderer was so cruel. What grudge did he have against the deceased?

In addition, there were criss-crossing whip marks on the body of the deceased, some new and some old.

This shows that the deceased was probably bullied for a long time during his lifetime.

When it comes to the investigation of Thorns Strip, many detectives have unsightly expressions on their faces.

Such brutal crime scenes are extremely rare.

The murderer's behavior can be described as perverted.

"The fifth group focuses on tracking tire marks."

Chen Yan collected his thoughts and continued to make arrangements: "On the one hand, we need to inspect the tricycle belonging to the reporter Wang Fugui and his wife."

"Including whether there is any friction between the iron cage and the box in the carriage, and whether the tire marks of the tricycle are consistent with those at the scene under different load-bearing conditions."

Although Wang Fugui and his wife were the ones who reported the crime, there was no surveillance at the time, so they were also suspected of committing the crime.

Therefore, the tricycles they use need to be investigated.

On the one hand, if they cry out to catch thieves, then they should use the iron dragon transported by tricycles.

Then, during transportation, the iron cage is bound to come into contact with the tricycle's box.

In this way, it will be easier to find some clues.

On the other hand, even if the other party has already taken precautions, such as wrapping the cage with something like a quilt to avoid collision.

However, the weight of the iron cage plus the deceased was at least 150 kilograms.

In this case, the tire marks on the tricycle will definitely be different when the load is increased by 150 kilograms and when it only carries Wang Fugui and his wife.

"There's a second set of tire marks."

Click.

Switching the screen projection, Chen Yan pointed to the second set of tire marks: "In this set of tire marks, the two middle tire marks are the same. They should be the tire marks of a motorcycle."

"There are different tire marks on both sides, but the depth of the indentations is basically the same."

"So, it is very likely that it is a motorcycle pulling a cart, and the tires on both sides of the cart are different."

This is quite easy to explain.

If one side of the stroller's tire is severely worn, it is possible to replace it with a tire with a different pattern.

After all, carts are pushed manually.

If the speed is not fast, even if the tire patterns on both sides are inconsistent, rollover will not occur.

After the five tasks were arranged, everyone took the order and left.

In the conference room, there were only Chen Yan and Zhao Haiyang.

This case is somewhat unusual.

The murderer's ruthlessness far exceeded Chen Yan's imagination.

His technique is even a bit perverted.

The whip marks on the body of the deceased also indicate that the deceased may have been bullied frequently during his lifetime.

However, this person loves beauty very much, otherwise, he would not undergo nose plastic surgery.

There are also iron cages.

The place that was supposed to be locked has been welded.

Judging from the welding traces, it should be the situation in the past few days.

However, is welding something that ordinary people can have access to?

Chen Yan looked at Zhao Haiyang: "Captain Zhao, we are still dividing a group of people to follow up on all the welding shops within a hundred kilometers of the place where the body was dumped."

"The other party can weld the iron cage to death, so it must have welding equipment."

"Most people don't have this kind of thing."

Zhao Haiyang nodded: "Okay, I'll make arrangements right away."

After leaving the conference room, Zhao Haiyang was busy arranging work.

…

afternoon.

The first to return the message was the fifth group of people.

"Team Leader Chen, the inspection results of Wang Fugui and his wife's tricycle are out."

Click, screencasting is enabled.
To be continued...