"......" Xian Yu stared at the "mentally ill person" for a long time before he spoke a little irritably, "Let him turn himself in?" …… I can't do it......"

- When he died, there was only one passing man and the culprit by the window on the fourth floor, if the person who cut the railing was really not a mental patient, he would definitely notice that his current image did not appear at the scene at that time, and rashly using this method would make him suspicious......

Xian Yu thought, looking at Yin Chuan's puzzled eyes but didn't know how to explain.

[Fake psycho patients can't do it, isn't there still a passing man?] Blue Frost didn't seem to be able to stand it anymore, and a data alert came.

- But I don't know what those big men are here for, and I don't know where to find them.

[Think about it, what were they doing?] 〕

[Also, several big men appeared on the fourth floor of the mental hospital at the same time, what can they do?] 〕

- Looks like it's ......

- Moving glass?

- But if it's glass, it shouldn't be long, it's been so long, how else can you find them? ……

[It's very simple, why don't you just let them move the glass again?] 〕

- You mean? ……

[Little short legs, smash the glass!] 〕

——……

- Is there no other way?

[There's only one way to find witnesses—that's the only one I can think of for the time being.] Blue Frost said half a sentence and added.

- So you still need to find physical evidence? ……

[I guess you can't find it, the knife must have been thrown away, and you can't tell if the "physical evidence" is the real cause of the railing to break.] Instead of taking the time to find physical evidence, it is better to find a more practical human witness first. 〕

- Okay.

"I have another way." After a moment of data exchange, Xian Yu changed his previous sad appearance, raised his head to look at Yin Chuan, and a wicked smile appeared on the corner of his mouth.

"How?" Yin Chuan looked at the evil smile on Xian Yu's face, and for some reason a bad premonition suddenly surged in his heart.

"Let's go upstairs first." Xian Yu's face was mysterious.

"Ugh." Yin Chuan rolled his eyes.

The two continued to walk towards the inpatient building.

The tall and thin mental patient kept looking at Xian Yu and the others, with that silly smile on his face, and he didn't know how he managed to keep the same expression for so long without feeling tired.

[This may be the legendary facial paralysis.] Blue Frost interjected.

- Shouldn't facial paralysis be expressionless?

[Can't you forget if you have a smile of fascination on your face all the time?] 〕

When passing by the tall and thin mental patient, Xian Yu clearly felt a beam of scrutinizing gaze - the mental patient was thinking about who he and Yin Chuan were.

"Don't go upstairs." Xian Yu had just walked past the mentally ill person, and was about to relax and speed up the stairs, but he heard the mentally ill man's voice from behind, a little hoarse and a little light.

Xian Yu couldn't help but pause and turned his head.

The mentally ill person also turned around, but just grinned and walked away.

- Is he just a mentally ill person?

Xian Yu was in a trance, but he quickly pulled Yin Chuan directly to the entrance of the building and walked straight to the fourth floor......

“…… The isolation belt here hasn't been dismantled yet......" Yin Chuan looked at the black and yellow isolation belt that was pulled up at the waist height in front of him, and hesitated.

"It's okay, it's not in quarantine." Xian Yu looked at the fourth floor - only the section of the corridor near the area where he "jumped" was the quarantine area.