Last time, before Zhong Shi was tried, he told Han Cheng that when he was vomiting, a man once asked him how the meat tasted. He suspected that man was the murderer of the Nanda corpse case, and also suspected that the murderer was Live near his home.
Han Cheng took what Zhong Shi said to heart.
But after Han Cheng went back and looked at the file, he found that the police had actually conducted an interrogation of the residents near Zhong Shi's house, and no suspicious persons were found at that time.
Now that thirty years have passed, that place has changed drastically. Most of the people who lived there thirty years ago no longer know where they have moved.
In addition, Zhong Shi had never seen that man before, so he had no idea whether he was tall, short, fat or thin.
Therefore, the information provided by Zhong Shi is basically useless at present.
As for the "Nanda Corpse Dismemberment Case", they have to start the investigation from the beginning.
Backlog team, conference room.
Everyone started discussing the "Nanda Dismembered Corpse Case".
"Yu Shan, what do you think of the murderer's actions of killing, cooking, cutting and disposing of the bodies? Do you think there is anything wrong with this person's psychology and spirit?"
Han Cheng first asked Yu Shan, a psychology consultant. He wanted to see if the expert hired from outside the bureau had two skills.
"Team Leader Han, I understand what you mean. Generally speaking, when it comes to the murderer who commits such a serious case, many people think that the murderer may be a lonely and perverted person, a schizophrenic, manic and irritable person in life. People, wait.”
"But judging from the murderer's calm dismemberment, cooking and disposing of the corpses, as well as admiring the crimes he committed as a bystander, I feel that the murderer would never be a manic and irritable person in life. A severely mentally ill patient who cannot control his own behavior!"
"Because a person with mental illness will not act so logically and do things in such a clear and logical manner..."
"My personal opinion is that in life, he should be a very normal person to us. He may be a kind father, a husband who loves his wife, or he may be just an ordinary boss or employee... ..., in short, the people around him who know him should not associate him with a perverted murderer..."
.......
After listening to Yu Shan's analysis, everyone applauded.
It seems that this young psychology expert really has something!
The analysis is clear and logical.
"Lan Ru, do you think the murderer cut the corpse into pieces so finely and uniformly in shape? What kind of knife did he use?" Han Cheng then asked forensic doctor Lan Ru.
"It's hard to say. Sharp scalpels used by doctors, slicing knives used by butchers, etc. can be used. However, thirty years ago, there should not be many such knives, and they might only be available in some special industries!"
.......
After everyone’s heated discussion.
Finally, the backlog team decided to investigate the whereabouts of the deceased Xiao Aiqin on the day she was murdered.
According to the file, on the afternoon when Xiao Aiqin disappeared, her dormitory classmate Qu Xiao illegally used high-power electrical appliances in the dormitory and was fined by her class teacher. Xiao Aiqin, as the dormitory principal, failed to fulfill her management responsibility to dissuade her, so she was also criticized and punished by the teacher. payment.
Because of this incident, Xiao Aiqin felt so upset that she left school at six o'clock that day and went outside to relax.
And once she left, she never came back.
Three days later, her body was discovered by sanitation workers.
Thirty years ago, there were no surveillance cameras installed on the streets of Nanshi, so no one knew at that time where Xiao Aiqin went after leaving Nanshi University and where she was murdered.
Thirty years later, although surveillance cameras are installed everywhere on the streets of Nanshi, the roads are completely different from those back then.
So Han Cheng decided to let the computer genius Shen Mao make a 3D model of the city to restore the roads, buildings, shops, etc. of Nanshi back then as much as possible.
This task seems simple, but it is not so easy to do.
You can find out the roads back then by looking at the maps from that year.
But it's not that easy to know what shops are on each street.
Except for some large shopping malls, which are marked on the map, those small shops will not be marked on the map.
The industrial and commercial registration information of these shops has been destroyed after so many years and cannot be found.
But Han Cheng didn't want to miss every detail.
In order to restore the original appearance of Nanshi streets as much as possible, Han Cheng came up with an idea.
He launched an online campaign to "restore the old city of Nanshi thirty years ago."
He asked Shen Mao to make a 3D sandbox model of Nanshi City thirty years ago, and then asked citizens to fill in the names of the blank shops.
This activity aroused the nostalgia of the older generation of Nanshi people. They participated in this activity one after another and filled in the names of the shops they remembered.
Soon, the names of the shops in Nanshi thirty years ago were marked one by one. .
There is a 3D sand table model of Nanshi city thirty years ago.
Han Cheng and the others began to deduce the route Xiao Aiqin took after leaving school.
Back then, there was a commercial street coming out of the gate of Nanshi University. There were many shops on both sides of this street and people came and went. Han Cheng and the others felt that it was unlikely that Xiao Aiqin would be abducted in the street.
So first rule out the possibility that Xiao Aiqin disappeared there.
After coming out of the commercial street, there is a fork in the road. There are two roads to take, one leading to Qingsha Road in the eastern suburbs of Nanshi, and the other leading to Changdi Road in the western suburbs.
There is a police station in the middle of the two sections leading to Qingsha Road or Changdi Road.
Han Cheng and others guessed that the murderer would not be so bold as to kidnap people near the police station.
Therefore, Han Cheng and others speculated that Xiao Aiqin most likely disappeared on the road near Qingsha Road or Changdi Road.
Because these two places are almost seven or eight kilometers away from the entrance of Nanshi University.
Based on a person walking 5 kilometers in an hour, it would take Xiao Aiqin more than an hour to walk seven or eight kilometers. In addition, it snowed a little that night and the weather was relatively cold, so Xiao Aiqin should walk slower.
After walking for more than an hour, Xiao Aiqin should be tired and hungry by then, and might look for something to eat.
Han Cheng found that there are several noodle shops on Qingsha Road and Changdi Road.
Has Xiao Aiqin ever eaten noodles at these noodle shops?
If she had eaten powder in a certain powder shop, the boss would have been impressed by this beautiful girl wearing a red coat.
In order to confirm his conjecture and find the owners of those pink shops, Han Cheng divided the backlog team into two groups and visited the old residents who lived on Qingsha Road and Changdi Road respectively.
From the mouths of the old residents, Han Cheng and the others finally found the owners of the powder shops one by one.
Many of them are now in their seventies or eighties, but fortunately, none of them has Alzheimer's disease yet.
One of the owners of a noodle shop on Qingsha Road recalled that there was indeed a girl with an outstanding appearance in a red coat who had eaten noodle in his noodle shop.
When Han Cheng heard what the owner of the powder store said, he suddenly became excited.
This is a new discovery since the NTU corpse case was classified as an unsolved case.
