Everything went according to Han Cheng's plan.
At eight o'clock in the evening, people from the Second Criminal Investigation Team were waiting in the room.
Han Cheng hid not far away and stared at the entrance of the building.
The building where the room where Han Cheng asked the Second Criminal Investigation Team to ambush was located in the faculty dormitory building of Nanshi University that was about to be demolished.
Most people have now moved out of the building, with only a few residents still living in the building.
There are no gatekeepers at the entrance and exit of the building, so anyone can come and go at will.
Han Cheng chose this place because he didn't want to create obstacles for the murderer.
As long as he takes the bait, he will not be able to escape after entering that room. At that time, Han Cheng will cooperate with the people of the Second Criminal Investigation Team to outflank the murderer.
However, Han Cheng's plan of "catching a turtle in a urn" failed in the end.
They kept watch all night, but the murderer didn't show up.
Could it be that the previous case information was not leaked intentionally or accidentally by a member of the backlog team?
So how did the murderer know his step-by-step actions?
This made Han Cheng a little confused.
If this mole is a member of the police system, which positions are most likely to be suspected?
Han Cheng thought of forensic medicine.
Most of the criminal policemen who had previously investigated the Nanda corpse case tended to suspect that the murderer was a doctor.
But the scope of doctors is very wide, in addition to ordinary doctors who treat diseases and save lives.
Forensic medicine can actually be classified as a doctor in a broad sense, but ordinary doctors deal with living people, while forensic medicine only deals with dead people.
And precisely because forensic doctors often deal with dead people, they have no fear of corpses and can cook and slice them calmly.
If the murderer was a forensic scientist, it would not be difficult to identify this group. Thirty years ago, there were still very few people studying forensic medicine.
As long as we screen all the people in the forensic field in Guangxi Province at that time, we might be able to find some clues.
Based on the various clues currently known, the backlog team analyzed that the murderer was approximately 25 to 35 years old thirty years ago.
Han Cheng wanted to accurately screen the forensic data. He asked Shen Mao to retrieve the information of all the people who had worked in the forensic industry in Guizhou Province in the ten years since Xiao Aiqin was murdered from the police system database.
Although the data is huge.
But it’s not hard for Han Cheng! He has the ability to watch at double speed.
He can quickly check the information of all people, and then freeze the frame of the picture to hang everyone's information in his mind like a photo.
Soon Han Cheng screened out a suspicious person from the information of these forensic personnel.
This person's name is Shen Jian, a native of Longlin County. Thirty years ago, he was 31 years old. He worked as an intern forensic doctor in Pingshi for half a year. He later quit the forensic profession and his whereabouts are unknown.
This Shen Jian is so suspicious!
There are too many coincidences about him.
First of all, his household registration is from Longlin County. The murderer Han Cheng found before was from Longlin County.
Secondly, the age is also within the age range of the murderer Han Cheng and others speculated.
Also, I have done forensic medicine.
........
So many coincidences overlapped together,
Han Cheng's heart beat fast unconsciously.
Could it be that the murderer they are searching for is really him! !
Han Cheng followed Shen Jian's household registration information and checked it all the way.
It was discovered that Shen Jian was indeed there, but Shen Jian had died in a car accident more than 30 years ago.
The time of his death was not long before the "fake Shen Jian" went to work as a forensic intern at the Ping City Police Station.
The police system at that time was not perfect yet. As long as the applicant came with a recommendation letter from the school, they would let the applicant do an internship first. After they became a formal employee, they would review all the intern's information one by one.
Perhaps it was because of this loophole that "fake Shen Jian" got into the police station of Ping City and became a trainee forensic examiner.
Perhaps the reason why he resigned later was because he was afraid that his identity would be exposed.
So who is this fake Shen Jian? Why could he get the school's recommendation letter for Shen Jian?
Han Cheng guessed that this person was most likely a friend of Shen Jian, and he should be a very good friend.
In order to find out who Shen Jian's friends were during his lifetime, Han Cheng came to Shen Jian's home.
After Han Cheng revealed his identity to Shen Jian's parents.
Shen Jian's mother took out a photo, pointed to a man in a group photo and said: "Shen Jian has many friends, and the best friend among them is this guy named Lin Huo. He and Shen Jian were in the same room back then. When I was in medical school, after Shen Jian had a car accident, he has been helping us with Shen Jian's funeral!"
Han Cheng looked at the man named Lin Huo in the photo.
Lin Huo's appearance can no longer be seen clearly in the photo.
Maybe it's because the photos were oxidized because they were kept for too long.
Han Cheng frowned, who was this Lin Huo?
"Old man, have you seen this man named Lin Huo later?" Han Cheng then asked.
Shen Jian's mother shook her head and said, "I've never seen him before! I heard that he is no longer in Pingshi!"
In order to learn more about Lin Huo, Han Cheng went to Pingshi Medical College where Shen Jian studied and asked the school to retrieve Lin Huo's personal information and photos.
The photo of Lin Huo provided by the school this time is very clear.
Looking at Lin Huo's photo, Han Cheng used his facial reconstruction skills to picture Lin Huo's current appearance in his mind.
How could it be him!
Han Cheng was extremely shocked!
He couldn't believe the real culprit he was searching so hard for! !
It was right next to him.
And he's someone he admires a lot.
But that person's name was not Lin Huo.
Are they twins?
Han Cheng was also a little undecided, because in everyone's eyes, that person really didn't look like a murderer!