Chapter 359 DNA information to determine identity (normal update and 1500 monthly ticket plus more!)

Drive nails from Baihui hole?

Chen Yan had only seen this kind of killing method in novels before, and it was the first time he had encountered it in reality.

This case...

Kind of weird.

Why would a murderer kill someone like this?

Although the cause of death of the victim has been found, it is not very helpful for the investigation and handling of the case at present.

The steel nails found in the body of the deceased, about 5 centimeters in length, were rusted and can be bought at any hardware store.

It is very difficult to determine the identity of the murderer by tracing the source of the nails.

Because the cause of death of the deceased was rather strange, Chen Yan followed Wang Meng to the autopsy room.

The nails have been removed from the deceased's head and placed in a tray.

Chen Yan picked up the steel nail with tweezers and opened the visual gene lock to observe carefully.

The nails were covered with rust, and the nail caps had knock marks.

"Did you collect fingerprint information on the nails?"

Wang Meng shook his head: "We checked the steel nails carefully and found no useful information."

Chen Yan nodded, which was also what he expected.

The crime scene was not the first scene where the deceased was killed.

In the process of throwing the body, the murderer did not leave any traces.

And from the current point of view, the murderer chose to throw the corpse in the self-built area of ​​​​the Taipingfang, and the fundamental purpose is to use the demolition and construction to destroy the corpse.

It was only because the homeless Wu Guizhong accidentally discovered that the existence of the body was exposed.

Now just wait.

When the identity information of the deceased is confirmed, there are also the results of visits to the residents around the self-built housing area.

Putting down the nails, Chen Yan walked to the dissection table: "Did the deceased have any signs of being sexually assaulted during his lifetime?"

Wang Meng nodded affirmatively: "We collected menstrual fluid residues in the body of the deceased."

"Residual material was also collected from the mouth and chest of the deceased."

"Now doing DNA information analysis."

Wang Meng looked at the time on his watch: "In about two hours, the DNA information can be analyzed."

"Okay, let me know as soon as there is news."

"Yes, Captain."

…

4 pm.

Regarding the determination of the identity of the deceased, Zhang Chaoyang has not returned any news.

Zhao Bing was responsible for visiting and investigating the surrounding residents of the self-built housing area, and no valuable information was returned.

However, the DNA information collected from the deceased has been tested.

Wang Meng turned on the projector and started reporting.

"Captain, the residual material samples we collected from the deceased have analyzed a total of 4 kinds of DNA information."

Four?

Chen Yan's expression was slightly startled, how could there be so many pieces of DNA information?

Had the deceased ever been insulted by turns?

Considering the appearance of the deceased, this possibility exists.

However, the clothes on the deceased were not messy or particularly wrinkled.

If it's an insult...

Did the murderer re-dress the deceased?

"Report in detail."

Wang Meng nodded and began to report: "We analyzed the residual substances collected in the lower body of the deceased, and analyzed three kinds of DNA information."

"The material collected on the chest yielded two DNA messages."

"Material collected in the mouth found a DNA message."

Instructions for all DNA information are listed separately on the projector.

"The three DNA messages found in the lower body overlap with the two DNA messages found on the chest."

"But the DNA information in the mouth doesn't overlap with all the other DNA information."

"That is to say, the deceased had intimate contact with 4 men in a short period of time."

Having had intimate contact with so many men in such a short period of time...

Could it be that the identity information of the deceased is the young lady who did not return home at night?

However, it's not quite the same.

The deceased looked good, with fair skin and a good figure.

In particular, Chen Yan noticed the perfume used on the deceased at the scene.

Chen Yan had smelled the smell of this perfume on Shen Yunshu.

Although Chen Yan did not know the specific brand of this perfume, the price of the perfume used by Shen Yunshu was definitely not cheap.

How can a young lady who is engaged in dust work use such an expensive perfume?

And the clothes that the deceased was wearing.

Although Chen Yan does not know the specific brand of the clothes, the material of the clothes is very good.

It doesn't look cheap.

In addition, the deceased once wore a ring on the ring finger of his right hand, a bracelet on his left hand, and a necklace on his neck.

If you look at these details...

The economic conditions of the deceased should be good.

It seems that it should not be a dusty woman.

Chen Yan shook his head.

There is currently too little information to determine the identity of the deceased.

"Wang Meng, hand over the DNA information to Wang Wugang."

"Let him compare it in the DNA database to see if he can find anything."

"Yes!"

In the office, Chen Yan was pacing back and forth.

A young woman had intimate contact with 4 people in a short period of time.

After being killed, his body was thrown in the self-built housing area late at night.

All the rings, necklaces and bracelets on his body disappeared.

On the surface, it seems likely to be a robbery and murder case.

But generally speaking, most robbery and murder are crimes of passion.

Or it is a temporary intention, or a follow-up murder, and then a robbery.

The crime scene will definitely leave traces of the crime.

It's also less likely to kill with a nail.

Therefore, the loss of important property on the deceased is very likely to be deliberately forged by the murderer.

To create the illusion of robbery and murder.

Of course there is another possibility.

The deceased is engaged in the dust industry.

After the transaction is completed, the other party has no money to pay for the prostitution, and has the intention to kill.

After killing people, they looted the victim's property.

call…

He let out a long breath.

Chen Yan stopped thinking.

Whatever the deceased was killed for is just speculation right now.

The most fundamental thing is to determine the specific identity of the deceased.

Looking at the time on the phone, it was already 9:30 pm.

There is still no news from Zhang Chaoyang and Zhao Bing.

After walking out of the office, Chen Yan came to Wang Gang's office.

Hearing the footsteps, Wang Gang turned around and saw Chen Yan: "Captain, you are here."

"Well," Chen Yan nodded: "How is the comparison?"

"There is no information at this time."

Although the establishment of the DNA information database is very early, the information of the input personnel is not very rich.

Only those with previous convictions are included.

For ordinary citizens, it is difficult to collect DNA information, and they will not deliberately enter the DNA information database.

Therefore, if the perpetrator has no criminal record, it is difficult to determine the murderer through the comparison of the DNA information database.

"Continue to compare, if there is good news, there will be a breakthrough in the detection of the case."

"OK."

11pm.

Zhang Chaoyang and Zhao Bing returned to the second detective team.

In the conference room, Chen Yan knew by looking at the expressions of the two of them that the investigation was not going well.

really.

"Team Chen, the identity of the deceased has not yet been confirmed."

"We have visited and investigated the vicinity of Taipingfang's self-built housing area, and no missing persons have been reported."

"Other detective teams have also been contacted, and there have been no missing persons reports for the past two days."

"There are also detective teams in several nearby cities who have also made contact."

"There have been three missing person reports in the last two days."

"Two men and one woman, the missing woman is 52 years old and does not match the deceased we found."

Chen Yan nodded, then looked at Zhao Bing on the side.

"Team Chen, there is no particularly valuable information in my visit and investigation."

"The construction of the Tai Ping Fang self-built housing area started three days ago."

"Because of the loud construction noise, there is also a lot of dust."

"The surrounding residents are less likely to approach the self-built housing area at night."

"Moreover, the surrounding area is full of resettlement housing communities for demolition personnel. There are many tenants, and the occupants are very complicated."

"The flow of people is also very large, and it is very difficult to visit and investigate."

Chen Yan had already anticipated this.

The self-built housing area where the deceased was found is one of the three self-built housing areas in Liancheng.

It has existed for over thirty years.

The Taipingfang area that is being demolished is only a part of this self-built housing area.

Last year, a large area of ​​self-built housing was demolished and converted into resettlement housing.

Therefore, both the flow of people and the complexity of personnel are very large.

"I am very aware of the difficulty of advancing the work."

"However, the identity of the deceased has not yet been determined, and the investigation of the case is at a standstill."

"Chaoyang, Zhao Bing, you still have to work harder."

"We have now determined the cause of death of the deceased and found four DNA information from the deceased."

"But now we don't have any results in the DNA database."

"The determination of the identity and occupation of the deceased is related to the direction of our next step in investigating the case."

"So the work of both of you is the top priority."

After instructing Zhang Chaoyang and Zhao Bing, Chen Yan looked at the others: "Do you have any other opinions on the investigation of the case?"

****************

This is the second case analysis meeting.

Thirty-six detectives from the second detective team were in the conference room.

But no one spoke.

Mainly because the case has too little useful information.

The scene is not the first crime scene, and the clues left by the murderer are very limited.

Now that the identity of the deceased has not been determined, there is no way to propose a specific investigation direction for the next case.

Therefore, it is imperative to determine the identity of the deceased.

"Captain..." Song Lingxuan's voice came from the edge of the conference table.

Although Song Lingxuan has just joined the company, she has grown very fast.

In the trace identification team, it has gradually become the backbone.

This time, Song Lingxuan went to the scene with her master.

"I have a suggestion, I don't know if it's appropriate."

"Oh? There's nothing suitable or not, let's talk about it."

"Well, that's it."

"When I was investigating the scene, I found that the clothes on the deceased were DR brands."

"The clothes of this brand are international luxury brands and are more expensive."

"The average person rarely wears this brand of clothing."

"And there are very few DR brand stores in Liancheng."

"When I was shopping in the mall some time ago, I saw this dress worn by the deceased."

"It is certain that the clothes on the deceased are new this year, so I wonder if I can investigate from this aspect."

clothing?

Chen Yan had noticed when he was investigating the scene that the clothes on the deceased were of better quality.

But I really don't know much about the brand statement.

But Song Lingxuan's suggestion was very good.

Zhang Chaoyang, who was in charge of investigating the identity of the deceased, and the others heard it, and their eyes lit up.

If what Song Lingxuan said is true, then there is a good direction to determine the identity of the deceased.

By investigating the sales information of the DR brand store, it is very possible to find the deceased.

"Okay, that's a good suggestion."

Chen Yan looked at Zhang Chaoyang: "Chaoyang, take Xiao Song early tomorrow morning to investigate these DR brand monopoly counters."

"Yes."

This means that the ruler is shorter and the inch longer.

Zhang Chaoyang has never been exposed to this brand of clothing before.

Where can Zhang Chaoyang afford clothes that cost tens of thousands of yuan a piece?

The average man also pays little attention to the news in this regard.

Song Lingxuan was different, which was why the detective team had to have some female detectives.

It's not just that men and women are not tired to work together.

What women pay attention to is sometimes overlooked by men.

…

Noon on the 18th.

Zhang Chaoyang and Song Lingxuan brought back good news.

"Team Chen, found it!"

"Xiao Song's method really works."

Zhang Chaoyang reported excitedly in the conference room: "The clothes on the deceased are the new styles of the DR brand this year."

"Each piece of clothing sells for more than 20,000 yuan."

"We found the sales record of this dress at the DR brand counter in the Pacific Department Store."

"Three pieces of this dress have been sold this year."

Turning on the projector, Zhang Chaoyang showed Chen Yan the sales record.

"But in the back-end system of the counter, we can only check the sales records, and there is no way to find out who it was sold to."

"Next, Xiao Song and I went to the counters of the three shopping malls where the clothes were sold for verification."

"Three people who purchased the dress were found, a man and two women."

"Then we retrieved the surveillance video, and finally made an important discovery at the DR counter in Xidan Department Store."

"Team Chen, look..."

Zhang Chaoyang opened the video, and it was the image data of a woman leaving the DR counter.

click.

Click the mouse to pause the screen.

The woman in the video just turned around, and a familiar face was frozen on the projection screen.

It is the dead.

"Finally we looked into the deceased's bank card records when buying the clothes."

"But when the deceased bought the clothes, the bank card swiped was not her own."

"It's a supplementary card of a credit card. The owner of the main card is a man named Meng Jianglin."

"Meng Jianglin? Who is he?"

"Just now we have investigated the specific information of Meng Jianglin."

Switch the projection screen, and a photo of a bald man appears on the screen.

"Meng Jianglin, male, 52 years old, general manager of Liancheng Yuanfang Industrial Company."

it is good!

"Subpoena Meng Jianglin immediately."

"Yes!"

But what is surprising is that Meng Jianglin is not in Liancheng.

The mobile phone was also turned off, and the detectives sent by Chen Yan did not find Meng Jianglin.

Only Zhao Ying, Meng Jianglin's wife, was contacted.

"How do I know where that dead ghost went?"

"Since I have some money to change women to raise a mistress every day, I think he will die on a woman's belly sooner or later."

"If you really have something to do with him, go find a woman named Gu Dongmei."

"This Gu Dongmei is Meng Jianglin's health massage therapist. In fact, he is the third child raised by him. She must know where Lao Meng is."

It turns out that Gu Dongmei was originally Zhao Ying's health massage therapist, but Meng Jianglin took a fancy to her.

The two hooked up.

However, it is obviously impossible to find Meng Jianglin through Gu Dongmei.

Because, Gu Dongmei found in the population system, there are a total of 36 people in China.

Compared with the ID card photos, among them, a woman named Gu Dongmei from your ancestral province is the deceased!

Four hours later, the basic investigation of the deceased information was clear.

…

meeting room.

The third security case analysis meeting.

Zhang Chaoyang began to introduce the situation.

"The deceased, Gu Dongmei, female, 25 years old, from Guishi City, Gui Province, came to Liancheng four years ago."

"Running a massage clinic, but not open to the public."

"It was originally the masseuse of Meng Jianglin's wife Zhao Ying, but after they met Meng Jianglin, the two hooked up."

"Now Meng Jianglin's mistress."

"There is a boyfriend named Wang Xiaobei, 26 years old, who is a takeaway rider."

After the introduction of the basic situation, Chen Yan started the arrangement work.

"First, check all the interpersonal relationships of the deceased Gu Dongmei."

"Do you have any friends, enemies, other men besides Meng Jianglin, etc., etc. I want all the detailed information about Gu Dongmei."

"Second, investigate all the whereabouts of Meng Jianglin, general manager of Yuanfang Industrial Company, in the past two days, especially from the 16th to the 17th."

"Third, investigate the relationship between the deceased Gu Dongmei's boyfriend Wang Xiaobei."

His girlfriend has been missing for two days and has not reported the case until now. At present, this Wang Xiaobei is suspected of committing a major crime.

"And to summon Wang Xiaobei, I will personally interrogate Wang Xiaobei."

If Wang Xiaobei knew about the mistress relationship between the deceased Gu Dongmei and Meng Jianglin.

Then the possibility of Wang Xiaobei revenge for killing is very high.

"Fourth, compare the DNA information found in Gu Dongmei's body with Meng Jianglin, Wang Xiaobei... and Wu Guizhong who found the body and reported the case."

The autopsy personnel found four kinds of DNA information in the body of the deceased Gu Dongmei.

This is very abnormal.

Because from the current information, there are only two men who have a close relationship with Gu Dongmei.

One is her boyfriend Wang Xiaobei and the other is her lover Meng Jianglin.

Since Gu Dongmei was Meng Jianglin's mistress, it is very likely that she had intimate contact with Meng Jianglin in the period before she was killed.

Then it is normal to detect Meng Jianglin's DNA information on Gu Dongmei.

There is also her boyfriend Wang Xiaobei, who may have had close contact with Gu Dongmei before her death.

But why were 4 DNA messages found in her body?

Who are the other two men?

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