National Forensic Doctor

Chapter 1318: Chapter 1244 Electrician’s Knife

When Li Guangnian saw Shen Changfeng again, he found Shen Changfeng lying on the sofa playing with his phone, looking just like an old detective with over five years of experience.

This image is really something!

Li Guangnian frowned slightly and coughed lightly: "What’s going on?"

"Boss!" Shen Changfeng tossed his phone aside and lunged forward.

Li Guangnian quickly blocked him with his hand and then stared at Shen Changfeng with the eyes of an old detective for a few seconds, seriously asking, "What’s happened? Got into trouble?"

"No." Shen Changfeng’s excitement was completely blocked by the captain’s three-dimensional arms, so his animated nature couldn’t contain his emotions, which ironically made him quite fitting for a detective.

"Did Director Jiang... bully you?" Li Guangnian’s mind flashed with some scenes that were not suitable to discuss at the moment.

Recalling what he had seen and heard recently, Shen Changfeng sighed, "No, I was just helping Director Jiang with the 3D printer, a bit tired."

"3D printer, Director Jiang is into that too?" Li Guangnian was surprised.

Shen Changfeng: "Boss, is there a possibility that the 3D printer wasn’t designed for printing models?"

"Did you use the 3D printer to print models?" The detective captain, born in the ’80s, didn’t follow up, just kept asking questions.

"No, we used the 3D printer to print weapons, potential murder weapons." Shen Changfeng said.

"Was it printable? Did you figure out what the murder weapon was?" Li Guangnian finally caught the key point.

Shen Changfeng: "Director Jiang thinks it’s an electrician’s knife."

Li Guangnian’s gaze instantly turned as sharp as Akagi Gangai: "Impressive, he actually found it? An electrician’s knife means the job is related to electrical work, or there should be someone connected to that industry at home..."

Saying that, Li Guangnian took out his phone.

Shen Changfeng looked at his actions and said coldly, "Boss, do you know RealityCapture?"

"What?" Li Guangnian looked baffled.

"I asked the same question when I first heard of it, with the same expression." Shen Changfeng shook his head slightly, "RealityCapture is a 3D reconstruction software, used to generate the morphology of wounds and surrounding tissues, and it uses Poisson surface reconstruction algorithms to create smooth surfaces..."

"What?"

"Exactly like that!" Shen Changfeng nodded in agreement and continued, "And there’s ANSYS, a finite element analysis software, used to import models and assign material properties, for example, muscle is 0.5 to 1 MPa..."

Li Guangnian, however, understood and gently patted Shen Changfeng’s back, saying, "You know, in many anime, the protagonist often encounters an all-powerful boss within just a few Chapters. The boss can easily shatter a tower that the protagonist went to great lengths to build, but not long after, the protagonist will stand tall in front of the boss..."

"You’ve said this before, boss." Shen Changfeng was touched when he first heard such stories, but after learning that the captain had a repertoire of such stories, he remained calm.

Li Guangnian obviously wasn’t encountering this situation for the first time either, and after clearing his throat twice, said, "Then let me tell you another one..." noveldrama

After finishing, without waiting for Shen Changfeng’s response, Li Guangnian said, "Go see Director Jiang, I’ll inform the family. This evidence about the electrician’s knife is very valuable!"

...

With this clue, not only was Li Guangnian’s team mobilized, but the entire Criminal Police Brigade of East Birch City was deployed, with the brigade leader personally leading the search for various pieces of evidence.

In East Birch City, this rainy night murder case was already taken very seriously, having gone through the hands of former experts, now that it was in Jiang Yuan’s hands, everyone understood that this was basically the last chance for direct investigation.

If Jiang Yuan couldn’t solve the case, there was little hope left in expecting any other expert to be brought in. In fact, inviting other experts to participate in the direct investigation might not even be considered a trap by the latter, and they’d be unlikely to get involved unless some crucial evidence surfaced, like the murder weapon appearing spontaneously or a suspect confessing...

It’s like a test paper; seeing the top 10 students in the grade attempt it and not pass, there seems no point in trying yourself. It’s not a free trial; failing again is likely to invite ridicule and potentially lead to a loss of substantial interest...

Of course, these are all future concerns; for the Criminal Police Brigade of East Birch City, they are currently in the thick of solving the case and naturally giving it their all.

The victim’s identity is clear, a sales personnel at a small trading company, not much opportunity to come into contact with electrician’s knives in the job, so the police turned their attention to their personal life and friends.

At this time, the company manager Zhang Zhanjun, who had previously been listed as a suspect, was placed under a microscope.

"Suspect Zhang Zhanjun, male, 46 years old, with a bachelor’s degree, is the boss of the company Qin Rui worked for. Graduated in electrical engineering and its automation, has worked as an electrician." When Li Guangnian got this information, he immediately went to find Jiang Yuan, saying, "He was the last person among Qin Rui’s colleagues to see Qin Rui, and we’ve already taken his statement."

Needless to say, with the entry of having worked as an electrician, everyone approached this as a serious threat.

Jiang Yuan asked, "How was he eliminated as a suspect?"

"The time of Qin Rui’s death is uncertain; it may have been a few days after disappearance. Zhang Zhanjun provided an alibi. Furthermore, Qin Rui and Zhang Zhanjun reportedly didn’t have much interaction, at least according to their colleagues." Li Guangnian paused, then looked at his notebook again and said, "We also asked Technical Investigation and Image Investigation to check phones and surveillance; Qin Rui should have returned to the rented apartment that day and later left again."

Stopping here, Li Guangnian paused: "However, if you consider Qin Rui and Zhang Zhanjun together, Qin Rui staying overtime that day wasn’t required. On the last day, the only ones working overtime at the company were boss Zhang Zhanjun and sales Qin Rui, which feels off."

Liu Jinghui scanned the related information at this point and said, "Zhang Zhanjun has moved the company to Beijing. His focus has been on Beijing over the past two to three years."

"Bring him in for questioning first." Jiang Yuan expressed no further doubts.

Li Guangnian was surprised: "Shouldn’t we investigate the periphery first? The suspect probably doesn’t know we’ve zeroed in on him. As a boss with a company in Beijing, he might have connections, shouldn’t we arrest him with more evidence?"

With his case at stake here, he had to voice his concerns.

"The suspect himself is the best evidence." Jiang Yuan declared decisively, "Bring him in to record footprints and fingerprints, collect DNA, and log his gait. Run through the surveillance videos around the last two cases to see if he appears nearby."

Liu Jinghui nodded in agreement, "He might be the last eyewitness, has relevant electrical experience, and also has the means, appearing in both East Birch City and Beijing. The level of suspicion is already very high. I recommend conducting a surprise inspection of his property and company assets!"