Chapter 534 Beijiao Ceramics Factory

Next, it depends on whether the more than 300 people in Liu Qingshan's group can find this lame middle-aged man as Chen Yan and Wang Fenglei expected.

There are nearly 4,000 cameras, and each camera contains one and a half hours of video data. Every frame cannot be missed, so everyone must not fast forward and read the surveillance data carefully.

Moreover, if there are still no clues found in these more than 3,000 videos, we can only relax the time limit and look for information from a long time ago.

Because the time when the murderer visited the scene was definitely not possible at the time of the crime.

It is possible that a day or two before the crime, or even a month or two, the murderer had not committed a crime for 10 years. This crime must have been committed on the basis that he thought it was foolproof.

Patience, the competition now is patience.

Chen Yan believes that the only thing he does not lack is patience.

While Liu Qingshan's group was reviewing video materials, the work of other groups was also progressing in an orderly manner.

At noon, Chen Yan sat on the sofa in the office and rested for a while.

After all, I haven't slept all day and night, and a short nap will bring great relief.

Moreover, in Chen Yan's view, the battle with the murderer has just begun.

The really tough part is yet to come.

At 3:30 pm the next day after the incident, Zhang Chaoyang returned to report the information.

The detailed investigation of the deceased Li Yansong was placed in front of Chen Yan.

"Team Chen, we have conducted a very detailed investigation into the situation of the deceased Li Yansong."

"Li Yansong, male, 32 years old, native of Shen City, dropped out of high school..."

Regarding the basic situation of Li Yansong, Zhang Chaoyang's investigation results are basically the same as those of Wang Fenglei's investigation.

"We found that there were no major problems in Li Yansong's bank transfer records, but when we investigated Li Yansong's mobile phone call records and WeChat records, we discovered this."

On the projection were Li Yansong's recent call records. Zhang Chaoyang pointed to one of the phone numbers: "This phone number, Li Yansong's contact information is 10080, but it is not actually a service provider."

"We entered the phone number among his WeChat friends and found the owner of this number, Ye Cao."

"Then we contacted this person..."

It turned out that this weed was a colleague of Li Yansong’s wife and a waiter.

"According to Ye Cao's account, Li Yansong's relationship with her lasted for about a year."

"How did they know each other?"

"At family gatherings, Li Yansong's wife has a very good relationship with Weed Cao. Sometimes the two families will get together, and Weed Cao and Li Yansong get to know each other."

"This Weed Cao's husband...does he know about Weed Cao and Li Yansong?"

"This is also the focus of my investigation, but judging from the current situation, Weed Cao's husband should not know."

"Moreover, Ye Cao and Li Yansong are together for money. Li Yansong's taxi income is mostly paid through mobile phone transfers, but there is also some cash."

"So he was with the weeds and would give them money."

"The chat history between the two of them is deleted every time. There is no historical record. The two of them are also very cautious when dating. They take Li Yansong's taxi to a small hotel in the suburbs and do not need to register their ID cards."

"The most important thing is that Ye Cao's husband is a truck driver. He went to other provinces four days ago to work as a laborer and has not come back yet. There is no time to commit the crime."

"What about other situations?"

"There's nothing else."

Chen Yan nodded.

Although Li Yansong had an improper relationship with this person whose WeChat nickname was Ye Cao, the other person's husband did not know about the two of them.

And there is no time to commit the crime.

Therefore, the possibility of Li Yansong being killed due to personal reasons can basically be ruled out at present.

But why did the murderer choose Li Yansong to commit the crime?

Random?

Shaking his head, Chen Yan put down his guess for the time being. Since he couldn't guess, everything would be clear once he caught the person.

Boom, boom, boom!

"Please come in!"

"Team Leader Chen, the results of the soil and fiber tests are out."

oh?

When Wang Kun entered the door, Chen Yan asked: "How is it?"

"There are some clues. The detective responsible for the inspection is in the conference room, and Team Wang is also there. Let's go there."

"good!"

In the conference room, Zhang Chaoyang once again gave a brief report on the investigation results about Li Yansong to Wang Fenglei and others.

"I agree with Team Leader Chen Yan's judgment that the possibility that Li Yansong was killed due to personal reasons can basically be ruled out."

"In this case, Xiao Wu, please report the test results of the soil collected at the site and the fibers found on the iron plate."

Standing in front of the projector was a young man, Wu Tian, ​​deputy leader of the technical team of the Shen City Detective Team.

This is also a technical geek, whom Wang Fenglei personally poached from the police academy five years ago.

When I was in college, I helped some detective teams conduct technical analysis and provided very important clues.

"Captain Wang, Team Leader Chen, the soil test results show that this is a kind of red clay used for firing ceramics. In Shen City, this kind of clay is only produced near the ceramic factory in the northern suburbs."

Red mud?

Chen Yan frowned slightly: "I remember that on the day of the crime, Li Yansong's taxi... you haven't been to the northern suburbs, right?"

Wang Kun nodded: "Absolutely not. We checked the trajectory information of Li Yansong's vehicle through the Sky Eye system yesterday. During the day, the driver on the day shift drove, but he has not been to the northern suburbs."

"After Li Yansong picked up the car, he only drove in Dadong District and Fenghuang District of Longgang District. He made sure he never went to the northern suburbs."

"There is a high probability that this dirt was not brought in by the day shift driver and Li Yansong. It was most likely left by the murderer."

Chen Yan and Wang Fenglei looked at each other and agreed with Wang Kun's judgment.

"Where's the fiber?"

"The thread-like fibers found on the iron plate are cotton fibers, but because the fibers are relatively small, it is impossible to specifically determine what kind of material the fibers fell off from."

"But it's definitely made of pure cotton. It probably came off the work clothes or cotton gloves."

Labor protection clothing, cotton gloves...

"Any other information?"

Wu Tian shook his head: "Our technical team can only make these judgments."

Chen Yan nodded, having these judgments was enough.

"Team Wang, we can now have a clearer judgment on the identity of the murderer."

"The suspect is a man about 50 years old. He is between 1.68 and 1.7 meters tall and weighs about 60 kilograms. He is thin and lame. He is probably a migrant worker and most likely lives in Phoenix. Street self-build housing area.”

Wang Fenglei nodded and agreed with Chen Yan's judgment: "This person is most likely a temporary worker. Before the incident, he went to the Beijiao Ceramics Factory to do odd jobs."

Chen Yan looked at Zhang Chaoyang: "Chaoyang, take a team of people to the Beijiao Ceramics Factory and check if you have seen this person there."

"The other person is lame and has difficulty with his legs and feet. It should be easy to identify."

"yes!"

Zhang Chaoyang took the order and left.

At this moment, Wang Fenglei's anxious heart finally relaxed a little.

Although the suspect has not been found yet, this time at least we have some characteristic information about the other party.

Maybe, it won't take long for Wang Fenglei to meet the person he has been looking for for fifteen years.

fifteen years!

Fifteen years...

How many fifteen years are there in a human life?