Each floor of the Sesame Apartment has two surveillance cameras on each side, with thirty floors in each building. In addition to the entrance and elevator cameras, there are nearly four hundred in total. The monitoring staff can't possibly view all of them at all times.
The elevator surveillance is relatively clear, so anyone who used the elevator or accessed these three floors during this period might be suspected. Those who used the fire escape to go in and out also seem suspicious.
The police conducted interviews and took away the surveillance tapes from Building 3 for further investigation. They planned to contact He Kao if necessary.
After all this commotion, it was almost dawn. Liang Kai, living on the nineteenth floor, felt a bit uneasy. He hadn't expected He Kao to report to the police so decisively.
