Chapter 291: The Replaced Surveillance

Han Fei used the Police system to retrieve a photo of Ji Gao Lang's son Li Yuanliang, directly confirming Xu Mo's suspicion.

The little boy in the family portrait is the community security guard who hurriedly resigned this morning.

A child who was abandoned by his father years ago and could only rely on his mother, after his father's death, applied for a guard position in the community that owned property under his father's name, and then hurriedly resigned on the day his stepmother died from poisoning… It's so suspicious that it's hard not to doubt him.

He has both a motive for murder and the means to commit it.

It can now be basically confirmed that the murderer is him; he hasn't fled.

Of course, to convict him, we still need to find his incriminating evidence.

Without evidence, the Police cannot arbitrarily convict anyone.

"I'm planning to check the community's surveillance and restore the segment that Li Yuanliang tampered with as soon as possible," Xu Mo said.

Li Yuanliang is a community security guard.

According to Xu Mo's speculation, the reason the Police found nothing when they examined the community's surveillance earlier was…

…because Li Yuanliang deleted or replaced the community's footage.

And that tampered footage must be his incriminating evidence!

If they retrieve the original footage, the Police can convict him.

"Alright, you go. I'll start the arrest of Li Yuanliang now; we'll work on both fronts, aiming to capture him and simultaneously locate his evidence. When the ironclad proof is in hand, his clever excuses will be useless."

Han Fei felt reassured while Xu Mo handled the matter.

Moreover, Han Fei had previously witnessed Xu Mo's Hacker Technique—a skillful master capable of easily breaching bank systems.

Having him investigate the tampered part of the community's surveillance shouldn't take long.

After ending the call with Xu Mo,

Han Fei immediately summoned a few of his capable assistants, intending to lead the team himself to arrest Li Yuanliang.

In fact, Han Fei could have let his subordinate officers capture Li Yuanliang.

But he didn't.

Mainly because Han Fei knew Xu Mo would check the footage quickly, and he didn't want to fall behind Xu Mo.

It's a matter of face!

If Xu Mo finds the tampered footage before Li Yuanliang is captured, it would be embarrassing.

To expedite Li Yuanliang's capture, Han Fei employed Tianyan.

After entering the name and ID number, Tianyan began operating, searching for Li Yuanliang across the vast surveillance network.

…

On the other side, after ending the call with Han Fei,

Xu Mo looked at the two officers who had come with him to gather evidence.

"I've found some new leads and plan to investigate; you keep gathering evidence and don't worry about me."

Having said that, Xu Mo turned and left the villa.

He walked straight toward the community guardroom.

Guardroom.

After stating his purpose to the guard, Xu Mo entered the guardroom and began examining the surveillance.

Tampering with footage is enough to deal with ordinary people.

Because ordinary people have no knowledge of such techniques.

But it's insufficient against Xu Mo.

He has methods to determine whether a segment has been tampered with.

"Officer, is there anything we can help with?" one guard asked.

Xu Mo: "…"

He didn't know where the "Officer" nickname came from; why do people like to call a police uncle? You're clearly older than me, why call me uncle!

"Has Li Yuanliang been alone in the Monitoring Room lately?" Xu Mo asked.

"Alone in the Monitoring Room…" the guard thought briefly: "Yes! It was today, around a little past six this morning. After breakfast I got a stomach ache, went to the restroom, about twenty minutes later, he was alone in the Monitoring Room. When I returned, he was hurrying to leave. I asked where he was going, and he said he was done."

He paused, as if recalling something.

"I remember now—I only got stomach pain after eating the breakfast he brought me! I thought, why is this kid suddenly so kind to treat me to breakfast? Damn, he actually slipped a laxative into it!"

No wonder Li Yuanliang killed someone, resigned, then fled instead of just running; turns out he came this morning to tamper with the surveillance…

"Did he leave the guardroom alone yesterday afternoon or evening? Like while patrolling the community?" Xu Mo continued.

The guard shook his head.

"During yesterday afternoon's patrol, I was with him; I don't know about the night. I'm on the day shift, not on duty at night. Let me call the night‑shift colleague for you."

After that, the guard took out his phone and made a call.

One minute later, he hung up and looked at Xu Mo.

"The night‑shift colleague told me that at midnight yesterday, Li Yuanliang came to the community, saying he had something dropped inside. Since we were all colleagues, the night shift didn't trouble him and let him in to look."

"Midnight…" Xu Mo repeated subconsciously.

Guan Yiliu's time of death was around three to four in the morning.

If Li Yuanliang entered the community at midnight to poison Guan Yiliu, the timing roughly matches.

Xu Mo pulled up the surveillance video from around twelve and played it at double speed for a quick review.

He found that from twelve to one—a full hour—Li Yuanliang's figure never appeared in the footage.

This clearly contradicts the guard's claim that Li Yuanliang arrived at the community at twelve.

It seems the tampered footage is from that period; Xu Mo thought the segment he was watching had likely been replaced by Li Yuanliang.

Immediately after, Xu Mo attempted to restore the original surveillance video.

Since he knows which segment of the tampered surveillance footage was altered, Xu Mo can restore the footage much more easily.

He is seen continuously tapping the computer keyboard with both hands.

In no time, he restores the segment that Li Yuanliang had replaced.

The restored footage is actually almost identical to what the guard described.

Li Yuanliang arrived at the residential complex at twelve o'clock, chatted casually with the guard at the entrance for a few sentences, and was then let through. It is worth mentioning that when Li Yuanliang entered the complex, he was still carrying a bag in his hand.

After entering the complex, he walked straight to the villa where the deceased Guan Yiliu lived and rang the Doorbell.

He took a cake and a rose from the bag, placed them on the ground, and then quickly left.

Soon after, hearing the Doorbell, Guan Yiliu came out to open the door and discovered the cake and flower on the floor.

In the subsequent scene, Guan Yiliu receives a phone call, then picks up the cake and flower from the floor, closes the door, and goes inside…