After Tang Jun came out of the rental house, he did not choose the path back to the hotel.
"I saw it when I came here during the day. Those surveillance cameras were good, so I deliberately bypassed them because I still had to go to the pond. I had already made up my mind to go to the pond and throw away my shoes and other things. There was also a piece of clothing that was stained with blood, but I was afraid that it would float in the pond, so I didn’t throw it in the pond.”
He processed the relevant murder weapons and the clothes and shoes that Tang Jun was wearing at the time in batches.
When he reached the edge of the pond, he pointed to the spot where he had thrown his shoes.
"The fruit knife was buried under the wall of the self-built house over there, but I forgot which one. In short, it was under the wall near the canteen."
There are no self-built houses within more than thirty meters around the pond, so the distance is still quite far.
Following the direction pointed by Tang Jun, the police took Tang Jun there with them, and soon found traces of turned soil under the wall of one of the self-built houses.
The other party was not buried deep. It should have been a small hole dug out of the nearby tiles. The fruit knife that killed Zhang Lili was quickly found.
"Bureau Lu, this is it."
The following scene brought the fruit knife over to Lu Chuan for inspection. The blood stains on it were already clean, leaving only some brown traces.
"Take it back for experiments, extract fingerprints, and compare blood types."
"Yes!"
It doesn't mean that Tang Jun identified the fruit knife sold in this place as the murder weapon, which means he is definitely the murder weapon.
But what matters is the details of the evidence, so the blood stains remaining on the fruit knife must be analyzed to see if it belongs to Wang Mengmeng and the fingerprints remaining on it. Whether it can match Tang Jun's fingerprint is very important.
The detection of murder weapons is the most important part of any criminal case.
More than ten or twenty years ago, technology was not as developed as it is now, and the criminal investigation process in some places was not so rigorous, so there were many flawed cases.
Lu Chuan studied a case when he was in college.
In the same murder, the suspect confessed that the murder weapon was a sharp knife. The results were basically the same as the crime scene investigation, but the problem was discovered after the murder weapon was found.
Because the suspect burned the body of the deceased after killing the person, some results are less certain.
After the police found the sharp knife, they did not conduct a detailed examination of the remaining substances on the sharp knife.
Many years later, after another disappearance case was solved, it became clear that although the murderer had killed someone, the person he killed was not the person who the police thought was dead at the time.
The blood stains left on the sharp knife were actually pig blood, not human blood at all. The whole process was a golden cicada's escape from the shell plus frame-up.
Therefore, all the persons involved in that case were dealt with, and the key point was that the suspect in the case at that time had long since escaped the law and gone abroad.
Even after all these years, the case has not been completely solved.
Every step in the investigation process of criminal cases is indispensable, and this is a rule. Lu Chuan was always very cautious when executing these processes.
Another one is the necessity of identifying the scene.
Identification at the scene is not like taking photos in a movie, or like watching a news shoot of a suspect casually pointing his finger. That's it. This is not called identifying the scene, this is called staged photography.
The actual identification scene is about committing a crime. The suspect reconstructs the entire crime process at the scene. When, where, and what actions occurred during the conflict, the suspect needs to repeat it as clearly as possible.
The purpose is to prevent criminal suspects from committing crimes.
It's not like this has never happened before.
A similar case occurred in Haizhou City three years ago. The son killed someone, and the father came out to convict him.
As a result, when identifying the crime scene, my father did not describe the entire murder process clearly, and some of the details were completely contrary to the police investigation results and were full of contradictions.
It was precisely because of this that it was finally determined that this was a crime.
After finding the brother, Chen Jiang, Lu Chuan and others continued to escort Tang Jun to the small hotel where he lived. Tang Jun demonstrated the entire process of climbing in through the kitchen window on the first floor and then returning to his room.
"I didn't have time to wash the clothes I wore that night. They are in the suitcase under the bed, and you can see them as soon as you open them."
In fact, Tang Jun originally wanted to burn or throw away the clothes, but he felt it was a pity.
The coat and shirt were both new this year, and the pants were also a new pair of pants he just bought last year, so he thought about washing them and wearing them later.
But before he had time to clean up, the police kept coming to ask about the situation, and he didn't dare to take any action.
In this way, the entire case is completely solved.
The Criminal Police Brigade was responsible for sorting out the relevant materials and sorting out the entire case. That morning, Lu Chuan and Wang Zhaokai reported to Chen Weiguo of the High-tech Zone Bureau.
In the afternoon, Chen Weiguo and Lu Chuan went directly to the Municipal Bureau and reported the relevant situation to Song Jiangguo, the director of the Municipal Bureau.
The impact of this case was relatively large, two people died, and it spread very quickly in a densely populated area.
But fortunately, Lu Chuan and others solved the case quickly.
Within three days, Tang Jun was captured.
This is the Criminal Police Brigade.
The relieved people gathered together to discuss the facts of the case.
Sun Biao held the tea cup and took a sip.
"I feel this case is a bit nonsense."
"This Tang Jun murder should actually be considered from two aspects. First, he must have resentment towards Wang Mengmeng and Zhang Lili. Originally, he and Liu Lingling had almost discussed the remarriage, but the two best friends started to instigate , this matter is basically dirty again.”
"The second one was the passionate murder that night."
Chen Jiang was in charge of the entire interrogation process, and he still recognized Sun Biao's judgment.
"Actually, the two of them didn't have a deep relationship. After Liu Lingling got divorced, she felt that it was okay to remarry or not to remarry, but her family didn't agree with him remarrying, and her two best friends didn't agree with her remarrying either. ”
The reason is also very simple. Whether Liu Lingling's family or Liu Lingling's best friend thinks that he has no children, Liu Lingling can still get some gift money if he gets married again.
In particular, Liu Lingling's family is strongly opposed to his remarriage, and they have recently been thinking about starting a blind date for her.
"The divorce was because Liu Lingling's grandfather lost 1,000 yuan, and Tang Jun got the wish, so the conflict was here."
"It's too utilitarian. They regard marriage as just a transaction. They don't even think about spending a lifetime together."
But the police can't handle this kind of thing.
It is still very common in rural areas. (End of chapter)