When Li Guangnian saw Chen Changfeng again, he saw Chen Changfeng lying on the sofa playing with his mobile phone without any image, just like an old criminal policeman who had been working for more than five years.

Where can this image work?

While frowning, Li Guangnian coughed gently: "What's going on?"

"Boss!" Chen Changfeng threw away his phone and rushed forward.

Li Guangnian quickly blocked him with his hands, stared at Chen Changfeng with the eyes of the old detective for a few seconds, and said seriously: "What happened? Have you been punished?"

"No." Chen Changfeng's excited mood was blocked by the captain's third-dimensional arm. The second-dimensional cannot hold his emotions, so it is quite appropriate to be a criminal policeman.

"Director Jiang... bullied you?" Some scenes flashed through Li Guangnian's mind that were not suitable for talking at this time.

Chen Changfeng recalled what he saw and heard during the past period and sighed: "No, I just followed Director Jiang to adjust the 3D printer, and I was a little tired."

"Director Jiang still plays with this 3D printer?" Li Guangnian was surprised.

Chen Changfeng: "Boss, is there a possibility that a 3D printer is designed to be not used to print figures?"

"Did you use a 3D printer to print figures?" The captain of the criminal police brigade who was born in the 1980s did not respond, but just blindly outputted the problem.

"No, we use a 3D printer to print the murder weapon, a possible weapon." Chen Changfengdao.

"Can you print it? Do you know what the weapon is?" Li Guangnian finally grasped the point.

Chen Changfeng: "Director Jiang believes it is an electrician's knife."

Li Guangnian's eyes instantly turned into Takaki Akagi: "Awesome, he actually found it? For electrician knives, it means that the profession is related to electricians, or there should be people from related industries at home..."

Li Guangnian said that and took out his cell phone.

Chen Changfeng looked at his movements and said in a cold tone: "Boss, do you know RealityCapture?"

"What?" Li Guangnian looked surprised.

"I asked the same question at the time, and the expression was like this." Chen Changfeng shook his head slightly: "RealityCapture is a three-dimensional reconstruction software used to generate the shape of wounds and nearby tissues. It also needs to generate smooth surfaces through the Poisson surface reconstruction algorithm..."

"What?"

"That's it!" Chen Changfeng nodded in agreement and said again: "There is also ANSYS, which is a finite element analysis software used to import models and assign values ​​to material properties, such as muscles that are 5 to 1 megapas..."

Li Guangnian understood, gently patted Chen Changfeng's back and said, "You know, when many male protagonists of anime are at the beginning, they will encounter a boss with one hand in a few chapters. With a light palm, the boss can smash the tower that the male protagonist can't destroy even if he has tried his best. But it won't take long, the male protagonist will stand up in front of the boss..."

'You said it, boss." Chen Changfeng was very moved when he heard a similar story for the first time. Later, he learned that the captain was wholesale such a short story, and then he became calm.

It was obviously not the first time Li Guangnian encountered this situation. He coughed twice and said, "Then I will talk about another one..."

After finishing his speech, Li Guangnian said without waiting for Chen Changfeng to respond: "Go to see Director Jiang, I'll tell you about it. The evidence of electrician knife is very valuable!"

...

With clues, not only Li Guangnian's first brigade, but also the criminal police detachment of Donghua City were mobilized, and the detachment leader personally led the team to start searching for various evidence.

For Donghua City, this rainy night murder case itself is highly valued. After being handed down by a former expert, it has now fallen into Jiang Yuan's hands. Everyone understands that this is basically the last chance to crack the front.

If Jiang Yuan participates and cannot solve the case, it is unlikely to expect any expert to come and participate in the future. It can even be said that it would be good if the latter does not think this is a trap.

A normal criminal investigation expert, as long as he does not owe you a life, he will most likely not intervene in this case. Unless there is another extremely important evidence in the future, such as a weapon jumping out directly, or a suspect in a certain case directly reports or even confesses...

This is like a test paper. When you see the top 10 students in the grade who did it but failed, is it necessary to do it yourself? This is not a free attempt. If you get the failed again, you will not only easily get ridicule, but also may also lose substantial benefits...

Of course, these are all things to come. For the Donghua City Criminal Police Detachment, they are now working on the test papers, so they naturally have to do their best.

The victim's identity is clear, he is a salesperson in a small trading company. He has not had many opportunities to get involved in electrician knives in his career, so the criminal police team turned his attention to his life and relatives and friends.

At this time, Zhang Zhanjun, the manager of the company, was placed under a microscope.

"The suspect Zhang Zhanjun, male, 46 years old, has a bachelor's degree, is the boss of the company where the victim Qin Rui works. He graduated from the electrical engineering and automation major and worked as an electrician." After receiving this news, Li Guangnian immediately came to Jiang Yuan and said, "He is Qin Rui's colleague. When he finally met Qin Rui, we took a record of the person he had."

Regardless of everything else, there is an entry that has been used as an electrician now, and everyone is facing a great enemy.

Jiang Yuan asked: "How to remove the suspicion?"

"Qin Rui's death time is uncertain. It is likely that he died a few days after his disappearance. Zhang Zhanjun has evidence of absent. In addition, Qin Rui and Zhang Zhanjun did not use much social interaction, at least according to their colleagues, this is the case." Li Guangnian paused, took out his notebook and looked at it, and said again: "We also asked technical detectives and photo detectives to check the mobile phone and surveillance. Qin Rui should have returned to the rental house that day and left later."

Li Guangnian said this and paused: "However, if Qin Rui and Zhang Zhanjun were to watch it, it was not necessary for Qin Rui to stay overtime that day. On the last day, the only ones working overtime in the company were the boss Zhang Zhanjun and the salesman Qin Rui, which felt something was wrong."

Liu Jinghui also scanned the relevant information at this time and said, "Zhang Zhanjun drove the company to the capital. His focus of his work in the past two or three years has been in the capital."

"Bring it here and ask first." Jiang Yuan had no doubts anymore.

Li Guangnian was shocked: "Don't you investigate the outside world first? The suspect shouldn't know that we have investigated him. The boss who runs a company in Beijing might be able to contact someone. Is it better to arrest someone after some evidence?"

There is his case here, and he has to give his opinion.

"The suspect himself is the best evidence." Jiang Yuan said affirmatively: "Pull it over and leave footprints and fingerprints, take DNA, take gait, and run the surveillance videos around the two cases in the next two cases to see if he has appeared nearby."

Liu Jinghui nodded in agreement: "He may be the last witness, and has experience in electricians. In addition, he has money and has appeared in Donghua City and Beijing City one after another. The suspicion is already very high. I suggest a surprise inspection of his real estate and company assets!"
Chapter completed!