Shi Xiaohai is at a loss. After all, he is not a policeman. He has no criminal investigation brain and relies on his intuition.

when pan Yonggui said that even the surveillance video could not be checked, Shi Xiaohai was helpless. Is the clue that an acquaintance enters the room broken?

Shi Xiaohai said to pan Yonggui, "take me to the monitoring room. I want to see the monitoring video!" Pan Yonggui nodded and said to him, "well, it's Xiao Lou on duty tonight. You can ask him if you have any questions."

in the monitoring room, Shi Xiaohai sits on the chair beside the computer and looks at the...