Attending ex-girlfriend's wedding, arresting the groom's officer on the spot

Chapter 1058 Lu Chuan's Opinion

Lu Chuan is now certain that the fingerprints on the black plastic bag belong to Gao Zhiyuan, there is no doubt about it.

But with Gao Zhiyuan's income level, he couldn't afford to drink Dahongpao tea that costs tens of thousands of yuan.

Lu Chuan then reported his findings.

"The fingerprint was extracted from the edge of the handle of the plastic bag. The fingerprint was broken and there were signs of strong twisting. It should be that Gao Zhiyuan had lifted this plastic bag."

If Gao Zhiyuan had not mentioned the plastic bag, his fingerprints would not have been damaged in this way.

"But according to the current investigation clues, Gao Zhiyuan was not in Tongzhou City at the time of the crime. He has sufficient alibi."

After Lu Chuan discovered this, he couldn't figure out what the secret was.

What is the significance of the murderer doing this?
If the murderer just wanted to frame someone, there would be no need to go through so much trouble.

The murderer was able to make a relatively complete copy of the fingerprints of the framed target on a black plastic bag.

In addition, if the framed person has a weak alibi, the police will continue to investigate regardless of whether they believe the clue or not.

In this way, the probability of the real murderer being discovered will be much smaller.

But all the clues left by the Red Killer over the past 15 years point to people with solid alibis.

In this case, there is no way to frame these people, and there is no way to conceal the existence of the Red Killer.

In addition, there is genetic information that can be extracted from the body fluids left by the killer in the victim's body. This genetic information has been confirmed to be inconsistent with the DNA information of all the people whose fingerprints or footprints were found at the scene.

So why did the murderer go to the trouble of doing all these things?

Li Donglin also frowned.

Lu Chuan continued.

"Gao Zhiyuan has a clear alibi, but there are tea residues worth tens of thousands of yuan per ounce in the black plastic bag. What does this mean?"

What does it mean?
With Gao Zhiyuan's financial ability, he naturally couldn't afford tea that cost tens of thousands of yuan.

So who owns this tea?

In addition, if these teas do not belong to Gao Zhiyuan, then whose are they?
Who put the tea residue into the black plastic bag that Gao Zhiyuan mentioned?

"Another point is that Gao Zhiyuan's place of residence is problematic."

A map appeared on the projection operated by Lu Chuan.

"This is the North Second Lane of Jianguo Road where we found the victim's finger, but Gao Zhiyuan lives in Hongsheng Garden Community, which is on Beisheng Road, about 5 kilometers away from the North Second Lane of Jianguo Road."

After Lu Chuan obtained the clues through technical investigation, he conducted some logical analysis and judgment on these clues and came to many interesting conclusions.

"Gao Zhiyuan lives 5 kilometers away from the North Second Lane of Jianguo Road where we found the victim's finger. Is it possible that the other party would run so far just to throw a garbage bag?"

Lu Chuan then asked: "If this garbage bag was not thrown by Gao Zhiyuan, then who brought this garbage bag?" Although Lu Chuan was asking a rhetorical question, in fact, combined with the fact that Gao Zhiyuan had sufficient alibi, Lu Chuan believed that the garbage bag mentioned by Gao Zhiyuan was actually used by someone.

"Lu Chuan, what is your conclusion?"

Li Donglin was also thinking about the questions raised by Lu Chuan. These questions seemed unrelated on the surface, but in fact, they were all important clues to the case.

However, if we analyze it roughly now, these clues are not related to each other, and there are even logical conflicts.

But is it because of these seemingly conflicting and unrelated details that the Red Killer has been having sex for 15 years without being caught?

In order to investigate the Red Killer case, many experts came from the provincial and ministerial departments, but most of them were in the field of criminal investigation.

To be honest, in Li Donglin's opinion, although the experts sent by the provincial departments or ministries in the past were very capable, they were weaker than Lu Chuan in terms of on-site investigation.

Lu Chuan is different from ordinary technical detectives. In addition to his technical skills, he also has a strong insight into solving cases.

When analyzing a case, Lu Chuan often takes the perspective of technical investigation as a basis, and then conducts logical analysis and judgment.

This is actually very rare, and this is also the most important reason why Li Donglin believes Lu Chuan has such a high crime-solving rate.

Generally, technical criminal police are responsible for logistics work. They go ahead and take things back. The technical criminal police are responsible for analysis and judgment, and then feed back the results.

The criminal police in charge of investigation at the front end directly use the technical analysis results made by these technical criminal police.

In fact, there is a lack of a process of mutual communication and questioning.

Often the technical results of on-site investigations do not completely match the criminal police's thinking and analysis of the case.

But Lu Chuan does not have such a problem. He has superb skills and strong case-handling ability. The two are combined all the time, and in him the effect of 1+1 being greater than 2 is reflected.

"I mean to focus on Gao Zhiyuan and investigate all the people who might have come into contact with the garbage bags he discarded."

In Lu Chuan's opinion, no matter who the suspect is, the fact that he took Gao Zhiyuan's black plastic bag and put the victim's severed finger into it was definitely not an accidental act but a planned one.

The reason is very simple. In the cases committed by the suspects in the past 15 years, they have pointed some clues to some unrelated persons in the cases.

These people are not related to the case because they have a complete alibi, but some clues about them were found at the crime scene.

If there were only one or two cases like this, then it could be said to be a coincidence, but if 11 cases were like this over a period of 15 years, then it is definitely not a coincidence.

The suspect must be able to get some information about Gao Zhiyuan.

In addition, Gao Zhiyuan and the victim both worked at Aijia Supermarket. Is this also a coincidence?

What a coincidence! The suspect randomly picked up a black plastic bag from a place 2 kilometers away from Lane 5, North Jianguo Road and put the victim's severed finger into it. It turned out that the owner of the black plastic bag was the victim's colleague. How is this possible?
If this is possible this time, then how do we explain the previous cases?

Lu Chuan carefully studied the case files of the previous 10 cases.

Although the cases occurred in different time periods, and some of the specific circumstances of the victims were not particularly the same and the crime scenes were also different, there are still many similarities behind them.

(End of this chapter)