Chapter 531 Case Analysis Meeting (Please Vote for the Big Chapter!)

Arranging the detectives to seal the iron plate in the evidence collection bag, Chen Yan and Wang Fenglei returned to the gravel land again.

At this moment, it is already five o'clock in the afternoon.

"How's it going?"

"It will be finished soon, we are doing the final collection work!"

The two detectives responsible for the investigation have taken two shifts.

Now we have finally reached the finishing stage!

"good!"

In the past fifteen years, Wang Fenglei has never put down this case.

Sometimes, when I wake up in the middle of the night, I recall the details of each case many times.

It can be said that this case has become Wang Fenglei's heartache.

The murderer disappeared after committing the fourth crime 10 years ago, and the next ten years were like disappearing from the world.

Wang Fenglei and others once thought that the other party had completely stopped or had an accident and would have died long ago.

But I didn't expect that the other party would commit another crime after 10 years.

In the past ten years, Wang Fenglei has not wished for a moment that this murderer would appear again.

Because only if the murderer commits another crime and shows up again can Wang Fenglei catch him.

But on the other hand, Wang Fenglei didn't want the murderer to commit another crime again.

Because every time the murderer takes action, it means the death of a person.

But this time, with Chen Yan's help, Wang Fenglei felt that this was the closest he was to the murderer.

This time, you may really not be able to run!

Shen City Detective Team.

The first case analysis meeting on the murder of a taxi driver was being held in the conference room.

Wang Kun is reporting on the general situation of the case.

"The victim, Li Yansong, male, night shift taxi driver of Shuntian Taxi Company."

"At 9 o'clock this morning, we received a call from the wife of the victim Li Yansong. Li Yansong was missing."

"At 10:30 in the morning, by calling the vehicle positioning system of Sunchon Taxi Company, we determined the specific location of the vehicle, the former site of Shen City No. 1 Cement Plant."

"The No. 1 Cement Factory in Shen City was built 70 years ago. Due to environmental pollution problems, it was moved to the outer suburbs five years ago. This factory has been abandoned for five years."

"After discovering the missing vehicle and missing person Li Yansong, we immediately cordoned off and investigated the scene."

"Through analysis and comparison of the murderer's modus operandi, it can be determined that Li Yansong's murder should have been committed by the murderer of the taxi driver's serial murder case 15 years ago."

When Wang Kun said this, he paused, glanced at Wang Fenglei, who had a gloomy expression and frowned, and continued to introduce the case.

"Many of my colleagues here should know about the serial murder of taxi drivers 15 years ago, including me, and many of us have personally experienced the investigation of the case that year."

The investigation of this case was not only led by the serious crime team led by Chen Yan, but also all the detectives who participated in the investigation of the serial cases who had not resigned and retired are now in this conference room.

"I don't need to go into details about the case back then. Everyone knows it."

"The murderer started committing crimes 15 years ago and committed four crimes until 10 years ago. All the victims at the crime scene were bled by probes, resulting in hemorrhagic shock and death. There were no fingerprints, skin flakes, hair, etc. at the crime scene. Wait for the residue.”

This is why the case was not solved back then.

At the four crime scenes that year, detectives from the Shen City Detective Team did not find any valuable clues.

10 to 15 years ago, although the surveillance system at that time was underdeveloped, there were many surveillance cameras on the streets. However, when Wang Fenglei and others were handling the case, they retrieved all the cameras that the murdered taxi driver passed by on the day of the incident. , and analyzed them one by one, but still found nothing.

"The only clue at the time was that all the money of the murdered taxi driver was missing."

Wang Kun continued: "So the four serial murder cases of taxi drivers are characterized as killing for money."

"But ten years ago, the murderer suddenly stopped. In the next ten years, it was like he disappeared from the world, and he never committed another crime."

"until today!"

"The murderer appears again!"

"The same modus operandi, the same killing methods, the same delicate and cunning mind."

"However, this time the murderer did not loot the taxi driver's money."

Although mobile payment has become very popular in recent years, in the taxi industry, you always have some change in your pocket.

Some elderly people are still accustomed to paying in cash when taking a taxi, so taxi drivers will have spare change in their pockets, but not a lot. Change of one or two hundred is relatively common.

"The change on the victim Li Yansong's body is still there, and there is no record of large-value transfers in the mobile bank card."

"The murderer's motive for committing the crime this time seems to be different from before."

"This time, he seems to be killing specifically for the sake of killing."

For the four taxi drivers who were murdered 10 years ago, Wang Fenglei and others have gone to the extreme in their background investigations.

It is certain that there is no relationship between the four taxi drivers.

Therefore, the possibility of killing someone in a specific relationship is basically denied.

In the end, it was determined to be a serial robbery and murder.

But this time, why did the murderer kill?

You know, the possibility of substitution is basically non-existent.

At that time, the serial killings of taxi drivers caused an uproar and had a very bad impact.

Even for a period of time, many taxi drivers stopped operating, not only in Shen City, but even the city where Chen Yan was located was affected.

The Liao Provincial Detective Brigade was under tremendous pressure. Otherwise, Wang Fenglei's master would not have resigned.

However, the greater the impact of the case, the better the confidentiality work.

The murderer's entire crime process, methods, and methods were not disclosed to the public.

So there is no such thing as someone pretending to be a serial murderer.

This is also a protective mechanism.

Details of many cases are not disclosed. On the one hand, it is necessary for case investigation. On the other hand, announcing the case is equivalent to teaching others how to kill.

Therefore, this information is rarely seen in public reports in society.

Even some literary works are somewhat vague in their descriptions of this aspect.

The fundamental reason lies here.

After that, Wang Kun introduced in detail the investigation of the case that year.

"As for Li Yansong, we have started a background investigation. Judging from the current situation, Li Yansong's social background is relatively simple."

"After dropping out of high school, Li Yansong went to the Automobile Repair Vocational and Technical College to study car repair. After graduation, he worked in a repair shop for two years."

"Li Yansong started driving a taxi three years ago. He has no enemies and his financial dealings are relatively simple. He got married two years ago and has no children."

"My wife works as a waiter in a hotel, my father used to drive a taxi, and my mother is a housewife."

Very clean social background.

"Team Wang, this is the basic situation."

Wang Fenglei nodded and looked around: "Everyone, I believe everyone is very clear about the specific circumstances of this case."

"It is no exaggeration to say that this is a shame in the history of the Shen City Detective Team."

"It's also a disgrace to my personal career!"

"Ten years, ten whole years!"

"When we participated in the investigation of the case, many of us were in our prime, and some even just joined the police. But now, ten years have passed in the blink of an eye."

"How many more decades can each of us here have to serve as detectives?"

"So, I hope everyone will cheer up this time, listen to the command, and dare to fight hard."

"We must capture the real culprit!"

After Wang Fenglei's mobilization order, the detectives present were really gearing up.

For ten years, this case has been a sword hanging over the heads of the Shen City Detective Team.

If the murderer is not caught, Wang Fenglei and others will be uneasy even if they retire.

"According to the current homicide investigation system of the Liao Provincial Detective Brigade, this case is now accepted by the serious crime team, and team leader Chen Yan will be responsible for the investigation and command of all subsequent cases."

"Including myself, I hope that all detectives from the Shen City Detective Team will complete the work deployment of the Serious Crime Team without any compromise!"

"Do you understand, everyone?"

"I understand!"

Even the elites of the Shen City Detective Team were convinced by Chen Yan.

Nonsense, who would be dissatisfied with a ruthless man who has won a special personal meritorious service?

What's more, after Chen Yan took office as the leader of the serious crime team last year, the first case he solved was the sinking city.

"Now, let's ask Team Leader Chen to make arrangements!"

Chen Yan didn't waste any time. He stood up and turned on the projector.

"Everyone, next we will work from the following aspects."

"First, we need to review all the surveillance video of the taxi of the victim Li Yansong from last night to early this morning."

The projection is turned on, showing the last scene of Li Yansong's taxi captured by the camera at No. 36 Fenghuang Street.

When Chen Yan arrived at the crime scene in the morning and organized personnel to investigate the scene, he asked Wang Fenglei to arrange for people to query all the driving surveillance videos of Li Yansong's taxi through the Sky Eye system.

The inquiry has basically been completed so far, but since Li Yansong's taxi appeared in the surveillance video of No. 36 Fenghuang Street at 3:08 this morning, the taxi has never appeared in the surveillance scope of the Sky Eye system.

"Phoenix Street is where Li Yansong's taxi last appeared. Look here."

Projection switching is a map.

"Based on the condition of the victim's body, we infer that the time of Li Yansong's murder should be around 4:30 this morning."

"From 3:08 to 4:30, there was 1 hour and 22 minutes in between."

"In other words, the murderer must have subdued Li Yansong within this time and then committed the crime."

"Just before the meeting, Li Yansong's time report came out, and it was determined that the direct cause of Li Yansong's death was hemorrhagic shock."

"But at the same time, we detected ether in Li Yansong's mouth."

"It can be determined from this that the murderer first stunned Li Yansong with ether, then drove the car to the cement factory area, and then killed people and cleaned up the traces."

Chen Yan and Wang Fenglei have reached a consensus on this judgment.

"The distance between Phoenix Street and the cement factory is 4.7 kilometers. If you drive on the normal route, you need to pass 5 traffic lights and 7 surveillance cameras."

"However, Li Yansong's taxi disappeared after being captured by the camera at No. 36 Phoenix Street."

"What does this mean?"

"It shows that the murderer got into the taxi after it passed camera No. 36 and before arriving at camera No. 37!"

"But after the murderer got in the car, he obviously did not let Li Yansong continue along Fenghuang Street, but turned into a side alley."

Everyone agreed with Chen Yan's analysis, otherwise Li Yansong's taxi would have appeared in camera No. 37.

Chen Yan enlarged the map photo: "Everyone here should be familiar with the history of Phoenix Street than I am."

Everyone nodded.

Fenghuang Street has existed in Shen City for almost fifty years. It has always been a shantytown filled with self-built houses.

This area is characterized by a large number of people, a large number of people renting houses, and intensive mobility of people.

"The roads inside Phoenix Street are complicated, and there are only surveillance cameras of the Sky Eye system at certain points."

"The murderer must be very familiar with this. After getting in the car, he directed Li Yansong to drive a taxi to avoid the cameras. However, many self-built houses here have their own surveillance cameras."

"The cameras were not connected to the internet, but it's possible they captured something."

“The first thing we have to do now is to thoroughly investigate the entire self-built housing community on Phoenix Street, find all the private surveillance cameras, and analyze and compare the videos from 3:08 to 4:30 last night. , see if we can find any clues in the video."

"Captain Liu Qingshan, you will take the lead in this work," Chen Yan looked at Wang Kun: "Please also ask Vice Captain Wang to organize the detectives to cooperate."

"Don't worry, Team Leader Chen, I will fully cooperate with you."

Wang Kun did not feel any resistance because Chen Yan asked Liu Qingshan to take the lead.

As Wang Fenglei said, this case is a sharp sword hanging over the head of the entire Shen City Detective Team.

Their only goal now is to solve the case.

Chen Yan nodded. On the one hand, he knew that the Shen City Detective Team would definitely cooperate fully. In the final analysis, he was helping them handle the case.

"Second, conduct a detailed investigation into Li Yansong's social background and interpersonal relationships."

Chen Yan knew that Wang Fenglei and the others had sent people to investigate Li Yansong's social background, and basically ruled out the possibility of someone pretending to be a serial killer.

However, there are some things that you should be afraid of just in case.

The murderer of the serial case has not committed a crime in 10 years. In the past, it was all for robbing money. This time, he had no intention of doing anything but just killing people?

Although the details of the serial murders that year were not released to the public, is there any possibility of coincidence?

Although this possibility is very small, it still exists.

"Zhang Chaoyang, you are responsible for advancing this work!"

"yes!"

Zhang Chaoyang is an outsider and is not familiar with some local conditions in Shen City. However, outsiders look at things from a different perspective and may be able to find some other clues about Li Yansong.

"The third is to analyze the traces at the scene."

Speaking of this, everyone was in high spirits.

Because the investigation of this case is very different from before.

In the previous four cases, no clues were found at the scene.

Fingerprints, footprints, nothing.

This is why the case has become unsolved.

But this time, because of Chen Yan's presence, many details were discovered at the scene.

"footprint!"

"This is the biggest clue we found at the scene!"

That's right, the surveyor extracted three sets of footprints on the driver's seat floor mat.

The photo is of three sets of footprints: "The three sets of footprints overlap and technicians are peeling them off. Theoretically speaking, two of them should belong to Li Yansong and the day shift driver, and the third set of footprints is very likely. Belongs to the murderer.”

Because the murderer once drove a taxi, this set of footprints is very likely to be left by the murderer.

However, because the space in the driver's seat is very small, the shoe prints on the floor mats are all superimposed, making it difficult to peel them off in stages.

However, this is not impossible. With current technology, both superimposed footprints and fingerprints can be peeled off.

It just might take a little longer.

"After the footprints are removed, the system will be compared with those with criminal records as soon as possible."

Normal people will definitely not keep records when collecting traces such as footprints. Only people with criminal records will keep records later.

It would be easier if the murderer had committed crimes before.

However, based on Chen Yan's speculation, the other party was able to commit crimes and murders continuously over such a long period of time, and the possibility of committing other crimes was very low.