Under Zhou Chen's guidance, Ma Desheng and the others quickly saw the five men, especially the man wearing a black coat.

Ma Desheng has also been studying this piece of evidence, so when he saw the buttons on the black coat, he recognized them at a glance. They were exactly the same as the evidence.

The next step was very simple. Ma Desheng immediately announced his identity and left with the man in the black coat and several of his companions.

Early the next morning, Zhou Chen came to the criminal police team.

Ma Desheng took a cigarette and handed it to Zhou Chen, but Zhou Chen waved his hand and refused.

"After asking, the coat should belong to the murderer, but that person is not the murderer. He said he picked up the coat. We conducted a careful investigation and interrogation last night. He probably did not lie. There is another murderer."

Ma Desheng sighed. To be honest, finding this coat was a surprise to him. He was not too surprised that the murderer was not caught.

Zhou Chen said: "Since it is the clothes worn by the murderer, someone must have seen it. We can search around the murder scene and see that no one has seen this coat."

Ma Desheng glanced at Zhou Chen unexpectedly: "Hey, you are quite smart, you can think of this. You don't need to tell me, I have already arranged for people to investigate, but this is a big project, I'm afraid it will take a long time, and

It is very likely that the murderer will find out. Whether the murderer can be caught is hard to say."

Zhou Chen did know the murderer's name, and he wanted to tell it, but he didn't know what excuse to use.

After leaving the police station, Zhou Chen searched around the city and found an Internet cafe with Internet access.

It is not easy to find this person just by knowing the name, but if you want to do it, there are still ways.

Using the Internet, Zhou Chen quickly found a company that specialized in finding people, and directly offered a high price to find a person named 'Jia Jian' in Hualin City.

As the saying goes, money can make people go around. The other company quickly accepted Zhou Chen's task and sent an account number to Zhou Chen, asking Zhou Chen to pay a 30% deposit first. The other party promised that after paying the deposit, it would be released within a week.

Give him the results of the investigation.

This kind of transaction is also a dark transaction. Neither party will show up or meet each other. The safety is guaranteed, but paying the deposit first requires taking a certain risk.

But for Zhou Chen, this risk was not worth mentioning, and he quickly transferred money to the other party's account.

Just like that, just three days later, the other party contacted Zhou Chen on the Internet and sent him the investigation results.

There were eighteen people named Jia Jian in the entire Hualin City. Zhou Chen screened them one by one and finally identified a few.

He used the size and model of the coat to determine the size and height of the murderer, which made it easy to investigate. Then based on the location and residence, he finally identified the two most suspicious people. They were both young adults, one in his thirties and the other in his fourteens.

Ten years old.

After identifying the target, Zhou Chen took action, first tracking and observing Jia Jian, who was in his thirties, and then followed Jia Jian, who was forty years old.

With his experience and skills, as long as he wants to track someone, it will be difficult to detect his tracking unless the other party's anti-reconnaissance capabilities are really excellent.
Chapter completed!