The arrest of Zhang Yuhui was without any waves.

Zhang Yuhui, male, thirty-six years old, an engineer at a software company, bald, homebody.

Last night, because he stayed up late writing code and didn't get up in the morning, when he woke up, he was looking down the barrel of a gun.

"What's your name?"

"Zhang... Zhang Yuhui..."

Zhang Yuhui graduated from a prestigious university, having received a high-quality advanced education, and was very clear that if this was not a dream, the people breaking into his room with guns must be the police or the military.

He was just a code nerd, not married, but his energy had been completely drained by the company boss, leaving no time to disrupt social stability.

His work was related to program code for smart appliances, not confidential, and he had never communicated with foreigners, so it shouldn't involve selling national secrets.

Furthermore, the clothes the other party was wearing... were clearly police uniforms.

So, even though he was very nervous, Zhang Yuhui still answered shakily when the other party asked for his name.

"Do you know why you're being arrested?"

"I... don't know..."

Zhang Yuhui answered honestly; he really didn't know.

"Take him away!"

Interrogation room of Yunfeng City's Criminal Investigation Team.

"Where were you on June 28th, eight years ago?"

"I don't know."

"Zhang Yuhui!"

Chen Wu personally interrogated Zhang Yuhui. On June 26th, eight years ago, Chen Wu took over as the captain of the Criminal Investigation Team, and on June 28th, they discovered a headless corpse.

So, Chen Wu had a very deep memory of the timeline back then.

"Eight years ago, the abandoned granary on Weimu Road, the headless corpse, have you forgotten?"

"Oh, you're talking about that case, I know it, the headless case, it wasn't far from my home."

Chen Wu was almost choked and couldn't speak.

"You know and still won't confess?"

Chen Wu's eyes were like a hawk staring at Zhang Yuhui on the interrogation chair, "Zhang Yuhui, tell me, who did you kill back then and why? Where did you hide the head?"

Hmm?

Zhang Yuhui was stunned.

What murder?

What head?

"Captain Chen... what are you talking about... murder?"

Zhang Yuhui finally reacted, "You... think I killed someone?"

Zhang Yuhui's somewhat bewildered expression turned into horror, "I didn't kill anyone! I'm innocent!"

Bang!

Chen Wu stood up and slammed the table, "Zhang Yuhui!"

"Didn't you just say you knew about the case, now you pretend to be innocent, it's too late for that?"

Zhang Yuhui indeed felt a bit wronged, "Everyone in our neighborhood had their fingerprints and DNA collected eight years ago over this case, of course, I know about it, no one living around there wouldn't know."

Chen Wu paused, deciding to play his trump card.

"We discovered a dagger inside the corpse, with your fingerprints on it, and you still want to argue?"

"Fingerprints?"

Zhang Yuhui was once again stunned, "Captain Chen, that's impossible, truly."

"I was on a business trip in May that year, and only returned a few days after the incident in June, I didn't even have the time to commit the crime, I had given my statement back then..."

The investigation into Zhang Yuhui was launched once again.

The results quickly came back.

"Captain Chen, we've identified the victim."

Although Zhang Yuhui himself did not admit to the murder, after Lu Chuan confirmed the fingerprints, the criminal police officer investigating the case began looking into his interpersonal relationships.

It turned out the victim was Zhao Yali, Zhang Yuhui's ex-girlfriend, but they broke up early in the year because Zhang Yuhui couldn't afford a house and didn't understand humor.

"After breaking up, I thought she returned to her hometown, and I didn't contact her afterward..."

Back then, Zhao Yali was a model who often took advertisements and photoshoots in Yunfeng City, Tianzhou City, Haizhou City, and other places.

So her whereabouts were uncertain, and Zhao Yali was from another province, having started working away from home at a young age.

"She rarely contacted her family, and when we were dating, I remember her saying she hasn't returned home or contacted her family in all these years."

Zhang Yuhui's words explained why there were no missing person reports for Zhao Yali.

Losing contact with her family for many years, naturally, there was no talk of disappearance.

Eight years ago, Zhang Yuhui's whereabouts were meticulously investigated.

According to the forensic examination of the corpse at the time, it was basically confirmed that the death occurred around mid-June under the circumstances then.

This means the exact time of death for the victim was around June 13th.

And during this time, Zhang Yuhui was indeed on a business trip and had no time to commit the crime.

Moreover, the breakup between Zhao Yali and Zhang Yuhui happened at the beginning of the year, and a check of the mobile call records from that year showed they hadn't contacted each other since then.

But the question remains, why were Zhang Yuhui's fingerprints found on the handle of the dagger that killed Zhao Yali?

The case's investigation seemed to be at a stalemate once again.

When Zhao Yali was murdered many years ago, Zhang Yuhui was not in Yunfeng City, ruling out the possibility of committing the crime.

However, inside Zhao Yali's body was a dagger with Zhang Yuhui's fingerprints.

"Captain Chen, could it be possible the murderer took the dagger from Zhang Yuhui's home and is trying to frame him?"

The subordinate's speculation might be the only possibility at present.

Chen Wu naturally focused on investigating Zhang Yuhui's neighbors from back then.

The investigation was conducted intensively.

Meanwhile, in the fingerprint battle conference room, Lu Chuan, after a morning of hard work, had gone through two more cases.

The first case wasn't very lucky, as the fingerprint analysis was unsatisfactory.

Lu Chuan used three different methods consecutively, and the pre-processed fingerprints obtained were all different.

This indicated that Lu Chuan's pre-processing of the fingerprints was a failure.

Advanced fingerprint identification analysis clearly cannot solve all fingerprint cases.

But this fingerprint was the only one Lu Chuan had encountered where the processing was a thorough failure.

The second case was relatively luckier; Lu Chuan only conducted one analysis and successfully matched the suspect.

With this, the cases successfully matched by Lu Chuan's hand increased from four to five.

The points went from forty to fifty.

In the afternoon, the efficiency of the expert group gradually reached its peak.

Many experts began to make significant progress.

"Ha! The third fingerprint!"

Zhao Zhigao was very excited; within two days, he matched three fingerprints, which was the most outstanding achievement Zhao Zhigao achieved in the fingerprint battle.

"Congratulations."

Lu Chuan genuinely congratulated him, although the ones he matched were not homicide cases, but cases admitted to the provincial fingerprint battle wouldn't be small cases like stealing electric vehicles.

"Oh, compared to you, I'm far behind. I'll stop here for today and learn from you for the rest."

Although Zhao Zhigao could not master Lu Chuan's methods, he learned a few small PS software tricks that Lu Chuan taught, which was key to his matching the third fingerprint.

Lu Chuan smiled, he certainly didn't hoard his skills.

It's good for anyone to learn, as one's energy is ultimately limited.

Matching five cases had already consumed a lot of Lu Chuan's energy.

Not only Zhao Zhigao, but other experts also generally had substantial gains.

Director Tian Rong had firmly occupied the second position, with her matched cases rising to six.

The points were also close to forty.

Everything was moving in a good direction.

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