Hou Liang was busy at the police station until one o'clock at night.

And Liu Yang, naturally, was also locked up and could not be released.

"Hou Dui, I really found the footprints of the third person at the scene, and the size should be about 45 yards. Judging from the depth of the footprints, it should be a strong man."

"Where did you find it?"

"Here, and here. In addition, we also found this shoe print in the direction of going East downstairs."

"Then expand the monitoring and then check. I don't believe I can fly with wings."

"Yes, Hou."

When the police officer said this, he understood in his heart. It was obvious that the Hou team had already taken care of it.

Liu Yang, who is locked inside, is really wronged.

"Hou, why are you so sure that there is someone else?"

Hou Liang sneered, "there were signs of struggle at the scene, but there was no sign of struggle. Just Liu Yang, a scholar, even if he was exercising, could not easily kill a man two centimeters taller than himself."

After a pause, Hou Liang's eyes darkened. "More importantly, there were no fingerprints and traces of Liu Yang on the dead man. It was only on this dagger. Don't you think it's too strange? Also, this dagger obviously has a scabbard. Then, the problem comes again. What about the scabbard?"

The policeman was stunned. It seems reasonable.

"Think about it, even if Liu Yang wants to kill him, he can't go there directly with such a dagger? He's not afraid of hurting himself?"

"I see. I'll inform you now to expand the search scope. You must find the scabbard."

"Also, don't forget about footprints and monitoring."

"Yes, boss."

Although Hou Liang has these doubts, he can't easily disclose them to the public.

After all, these are just one of his investigation directions.

Unless he can find relevant evidence, Liu Yang will have to be locked up.

If two adult men argue, the scene should not be like that.

According to their investigation, the physical strength of the dead and Liu Yang is equal.

If Liu Yang wanted to kill him, how could there be no sign of fighting?

Most importantly, the deceased was stabbed in the chest.

This kind of direct stabbing up is obviously not something that people like Liu Yang can easily do.

This is not a sneak attack. The dead can't be unprepared.

Therefore, on the surface, the evidence of this case points to Liu Yang, but in fact, there is another person.

There are too many loopholes.

The scabbard was not found, and nothing was found in the surveillance.

After expanding the scope, they copied back a lot of video materials.

Now I'm double browsing, and I don't know if it can be effective.

Hou Liang went in again to ask questions.

"Liu Yang, if you think about it carefully, do you and the dead offend anyone together?"

Liu Yang thought and shook his head.

At this time, his face was haggard and his whole body looked broken.

"Do you know what enemies the dead have?"

Liu Yang was stunned and shook his head again.

He was asking the reason for betrayal.

Where do you know that people will suddenly die?

"Then tell me again what happened when you entered his house. Remember, you must remember carefully. Did you hear anything?"