Tiangang police station building, a total of ten floors, and just now the interrogation room is on the sixth floor. The one minute blackout just now was actually done by Su Dongbo and some of his killer partners.

these methods have become a habit of them. It's easy to cut off the power and press the alarm, but there are guards everywhere, and cameras are everywhere in the police station building. It's very difficult for them to enter the motor room unconsciously.

if the four of them didn't cooperate well, they would have killed the guards of the motor, and then evaded the camera to shoot, and solved the guard...