Chapter 627 Doubts

meeting room.

The members of the serious crime team had a full discussion on the situation they just discovered and basically formed two opinions.

The first is to expand the scope of personnel investigation.

Since at the beginning of the discovery of the case, no signs of struggle were found at the crime scene when Wang Xu was killed, and the murderer committed the murder in the passenger seat of Wang Xu's car, the investigation of the suspects focused on people who were closely related to Wang Xu. body, but now it seems that strangers are also very likely to commit the crime.

The second is to investigate and analyze Wang Xu's whereabouts before the incident.

Wang Xu was killed in the early morning on his way home after drinking with several colleagues.

So the question is, how did the murderer know that Wang Xu would go home during this time?

Since the murderer may not be familiar with Wang Xu, why can the other party know Wang Xu's whereabouts so accurately?

What's more important is that the murderer made certain arrangements at the scene. Three piles of well-organized wine bottle fragments showed that the murderer had already planned.

There are only two possibilities for this situation. The first is that the people who drank with Wang Xu were the murderer's insider. He told the murderer the time when Wang Xu left the hotel and went home, so that the other party could lay the trap calmly and accurately.

The second is that the murderer knew Wang Xu's living habits very well. The other party knew Wang Xu's daily routine very well, knew that he was going to eat tonight, and roughly knew when he would finish the meal, so he could create a targeted trap.

Then what method did the other party use to understand Wang Xu's daily routine?

track!

Only through tracking can we be so precise and avoid being discovered by interested parties. Moreover, this kind of tracking cannot be completed in a day or two. The other party should have tracked Wang Xu for a long period of time before mastering his routine.

"We have already conducted investigations on several people who had dinner with Wang Xu on the night of the crime. It is true that the other party did not commit the crime at the time, and they all have witnesses."

"But there is indeed no detailed investigation of their mobile phone call records and WeChat chat records. If the other party is really an insider... it is not easy to investigate."

Liu Qingshan is not optimistic about the prospects of this investigation.

Judging from the degree of caution of the murderer in committing the crime, if the people who drank with Wang Xu that day were really culprits, it seems unlikely that his accomplices would have used their mobile phones to call him to report the crime and leave evidence.

As for WeChat records, it’s hard to find them if you delete them.

But being difficult to find doesn't mean you can't find it. You can still find some things through the Internet Police.

It just takes time.

"Let Chaoyang take over this job."

Chen Yan handed over the investigation of possible internal conspiracies to Zhang Chaoyang.

"In fact, based on criminal psychology analysis, it is unlikely that the murderer has an accomplice."

Chen Yan suspected that someone had tipped off the murderer, but this suspicion was very small.

From the fact that the murderer did not leave any clues at the scene of the crime, we can tell that the murderer was very cautious.

Moreover, Wang Xu’s financial affairs were not lost in the car, which means that the murderer was not interested in making money. If he had an accomplice, the interest demands of the other party and the murderer would be highly overlapping.

Let’s not talk about the possibility of such a high degree of overlap. Let’s talk about the caution of the murderer in the process of committing the crime. It is impossible for him to have a plan to recruit accomplices in the murder, or the possibility of this is very small.

Because the other party is highly cautious, how could he let others use the means to kill him?

Isn't he afraid that the other party will report him one day?

The human heart cannot be tested.

Of course, this is just Chen Yan's speculation. Whether the other party has an internal agent or not needs to be investigated before the final confirmation can be made.

Reasoning is always reasoning and can only provide ideas for solving the case. Evidence is the fundamental factor that makes the final statement a decision.

Compared with internal agents, Chen Yan is more convinced that the murderer personally followed and investigated Wang Xu.

"Wang Gang, you have to complete this task."

"We need to carefully review Wang Xu's itinerary in the past month and find all the surveillance videos, especially the videos at the entrance of Changjiang Road, Huanghe Road and Hengchang Community. If the other party chooses to start on Binhe Road, then it is very likely that this place will be attacked. Conducted multiple site visits.”

"Check, there are strange and suspicious people appearing under these surveillance cameras, or people who have lingered many times."

"The same is true for the investigation of Wang Gang. In all recent surveillance of Wang Gang, strange vehicles and strange people that appear more than three times must be emphatically analyzed."

Wang Gang nodded heavily: "Yes, Captain Chen, I'll take care of it right away."

End of the meeting.

In the office, Chen Yan was thinking alone.

Compared with the cases Chen Yan has investigated in the past, Wang Xu's murder case actually looks ordinary on the surface.

The crime scene was not bloody and the impact was not great, but Chen Yan felt that this was one of the more difficult cases he had encountered.

In the past, even if the case was difficult to handle, after a day or two of analysis, Chen Yan could always find some useful clues, some clues pointing to the murderer.

Even with Chen Yan's olfactory gene lock, visual gene lock and other abilities, the murderer can be quickly identified.

But this case is different.

The murderer's method of committing the crime was not very clever, but he was clean and neat.

It is an eternal truth that the more done at any crime scene, the more mistakes will be made.

The simpler the crime scene, the harder it is to leave traces.

The murderer who killed Wang Xu knew this very well. His stay in Wang Xu's car must have been very short.

Chen Yan suspected that this time was even measured in seconds.

He got into the car and stunned Wang Xu, stabbed his throat, wiped his fingerprints and left.

The murderer must be very familiar with this murder process and should have gone through many simulation trainings before killing Wang Xu.

This can be seen from the part of Wang Xu's neck where the knife was struck. The opponent's blow was fatal, accurate and ruthless, without any sloppiness.

Would a person with such thoughts and abilities be an unknown person?

People who have never killed someone will never know how horrific killing is.

Chen Yan had only seen one or two people like Qin Yu who could face the interrogation without changing his composure and could still deal with detectives.

The most fundamental reason why Qin Yu was so calm was that although he planned to kill Wang Xu, he actually failed to implement it.

If Qin Yu was really the murderer and really killed Wang Xu, would he still be so calm when facing the interrogation?

Of course, Qin Yu's suspicion is still not lifted even now.

With Qin Yu's IQ and logical ability, Chen Yan even suspected that the key Chen Yan found and the room he chose to decorate might be smoke bombs planted by Qin Yu.