Chapter 664: Cousin

Following Liu Cheng, Chen Guoning from the Criminal Science Center of the Zhengguang Branch came to send the suspect's footprint photos.

The two first put the photos on Jiang Yuan's desk, and Liu Cheng continued: "There are 7 suspects screened out by footprints in total. I asked Old Chen to widen the scope again, a total of 12. You see if you can screen them more finely."

After speaking, Liu Cheng added: "Old Chen, Chen Guoning is our old trace inspection in the Zhengguang Branch. He is also good at footprint identification and analysis. His master is a veteran of the Criminal Science Center. He used to study with the apprentice of the footprint tracking master Ma Yulin. After returning, he caught several trucks of criminals in a month, which was cited as a legend."

"Amazing. Hello, Director Chen..." Jiang Yuan came to the capital with some emotional intelligence work.

Chen Guoning looked like he was in his forties or fifties, smiled and said: "The amazing one is my master. To really talk about legends, it has to be the old predecessor Ma Yulin. My biggest regret in this life is not seeing the old gentleman. I have asked for advice from several of Ma Lao's apprentices with my master. However, I am, in my master's words, dull in aptitude, not very enlightened, and have learned a half-bucket of water, and still need to ask Team Leader Jiang for advice."

With a few words, he dissolved the slight embarrassment in the office with the story of the old predecessor. Of course, you can still hear a little bit of dissatisfaction. After all, Jiang Yuan is going to screen again in the list and photos he screened, and if he is a bit temperamental, he can even say that Jiang Yuan is riding on his neck to do things.

However, the "Rainy Day Corpse Case" is too big. It is still a case within a case like a mastermind behind the scenes. Chen Guoning is indeed powerless. In this case, he can only let Jiang Yuan play.

Moreover, because of the ability Jiang Yuan showed before, Chen Guoning even wanted to resolve the atmosphere.

Jiang Yuan is actually very familiar with this atmosphere.

Doing cold cases has this problem. The cold case task force is to check for omissions on the basis of the current case working group. Even if there is no problem with the current case task force, the work of the cold case group can compare the imperfection of the current case group.

Jiang Yuan smiled very habitually. It can only be said that half of the fees collected by Huang Qiangmin are for bearing pressure.

"The technology of footprint tracking is best to have multiple sets of footprints." Jiang Yuan explained simply.

Domestic footprint identification technology can be said to be inherited from Ma Yulin, a herdsman who started carrying work at the age of 12. He founded a criminal investigation art entirely by his own observation, comparison, and deliberation.

For a long time, the disciples who learned from Ma Yulin opened a large number of advanced study classes nationwide and trained the first batch of criminal police in footprint identification in China.

To talk about self-taught, Jiang Yuan, who only carries the system, still has a gap with Comrade Ma Yulin in depth.

Jiang Yuan guessed that this kind of technology that far exceeds ordinary people and far exceeds the criminal science people of the same era in the world, I am afraid that it must have a LV8 level.

It is conceivable that before the 1980s, mainly in the 1960s and 1970s, when there were dirt roads and mud roads everywhere, Ma Yulin's footprint tracking could be applied in various cases.

In contrast, the theoretical basis of footprint identification is now more solid, and the scope of application is wider, but to say it is easy to use, it may not be as good as that year.

"Where does Team Leader Jiang plan to start?" Chen Guoning did not discuss technical details with Jiang Yuan. He had privately read many cases of Jiang Yuan's footprint identification, and he was not very sure what Jiang Yuan could do...

Many cases, in Chen Guoning's view, could no longer be promoted by footprint identification, but Jiang Yuan could still make incredible judgments, but it always proved that Jiang Yuan's judgment was correct afterwards.

Today's case actually has this taste. Just as Jiang Yuan said, if there are multiple sets of footprints, Chen Guoning can also judge more meticulously, but there is only a single footprint, so there is no stride and gait, and the difficulty of judgment increases greatly.

Anyway, Chen Guoning has reached his limit. Serial homicide cold case, no need to remind, he also uses twelve points of strength. If he wants to refine anything, he is really powerless.

"Let's take a look first." Jiang Yuan smiled and looked at the photos for comparison.

One or two minutes per photo, more than a dozen photos read, Jiang Yuan said: "There are original photos, put them on the computer to see."

"I'll let it be transmitted to the background." Liu Cheng, who was sitting bored, immediately got up and called.

Jiang Yuan opened a 55-inch monitor hanging on the wall, waited for the photos from the background to be transmitted, and then opened the original image to read carefully.

After picking and reading two or three photos, Jiang Yuan stopped and said: "You can focus on investigating this one."

"Yang Wanjun?" Liu Cheng first looked at the photo number, then corresponded to the suspect, and said: "This is the cousin of the victim Liu Zhiwu, the son of his mother's younger brother, which is considered a close relative... Well, height and weight are consistent, we will focus on investigating."

Liu Cheng is basically confused. The case has entered the current stage, and all information is new. Liu Cheng has not been in contact with it before.

And like this kind of crime between close relatives, the motive for the crime is often more important and more difficult to obtain.

Liu Cheng first made a call and asked his subordinates to investigate. Turning back, he said: "Team Leader Jiang, is this footprint identified as the same? One person's? Or just a suspicion."

Jiang Yuan thought for a while and said: "Eight out of ten are the same person. The footprint conditions at the scene are like this. What can be seen mainly is the reaction pressure of the footprint, as well as the width of the pressure surface, the degree of inclination. Judging from these directions, it is relatively consistent with this Yang Wanjun."

Liu Cheng explained hurriedly: "I feel that Liu Zhiwu is a project manager of a decoration company. He should have offended many people, and we haven't fully organized his work-related relationships yet."

Liu Cheng is now a look that the form is not long enough, and the criminal police are not worried enough.

Chen Guoning was staring at the screen, following the direction Jiang Yuan just said, and couldn't help saying: "Isn't it said that there is worship? Will the customer worship him?"

Liu Cheng was stunned, then smiled: "It is also possible that the heart is uneasy. Get it, let's check this Yang Wanjun first."

Liu Cheng said and went out to arrange and deploy.

In theory, this kind of criminal suspect without a criminal record, directly asking at the door, may get a lot of information. Many people can't bear the face-to-face questioning of the criminal police. In the case of ordinary small cases, it is generally handled like this. Collecting evidence in advance is belonging to the serious case clan.

In other words, it is a case like today. Even if the criminal police are sure to use momentum to cheat out the confession, if possible, they still have to collect evidence first.

This is like at the poker table, no matter how strong the psychological warfare master is, it is not as good as the luck of the novice.

Jiang Yuan and Chen Ningguo wrote the appraisal report, signed and stamped it, and then went downstairs.

At this time, the office gradually became lively.

"Liu Chu." Jiang Yuan went downstairs and saw Liu Jinghui and Li Haochen squatting in the corner, looking at a screen together.

"Oh, Jiang Yuan is here." Liu Jinghui's expression was listless.

"Any progress in the case?" Jiang Yuan was a bit familiar with Liu Jinghui's expression.

Liu Jinghui nodded: "After Liu Zhiwu died, Yang Wanjun became the first heir to Liu Zhiwu's mother's estate."

"Eh, murder for money?"

"3 million property, 4 million at most, so it can't be very sure." Liu Jinghui curled his lips: "Liu Zhiwu's mother only has this set of property, and the remaining cash assets and such, 200,000 is the most."

"4 million house is also good. Many people can't earn so much in their lifetime." Li Haochen's expression was serious, and he said slowly: "Yang Wanjun's work is unstable, basically no work can persist for half a year, and he can't earn 100,000 a year. His father's residence in his hometown is not worth 1 million. His aunt's house is the only way for him to own housing in the capital."

"Does he understand technology?" Jiang Yuan asked the key question.

To film He Wei's crime process, even if it is the process of abandoning the corpse, it requires certain equipment and technology. Later, the way the two contacted through foreign software is also not easy for ordinary people to operate.

"It is not certain yet. But Yang Wanjun is a photography enthusiast, and has worked for several small e-commerce companies." Liu Cheng walked over at this time, his expression excited. From his point of view, as long as the case can be solved, whether the way of solving the case is beautiful or elegant is not in the scope of consideration at all. ===== CHAPTER 665 =====