Fyodor was in the process of killing one of Meursault prisoners, specifically the woman who was stopping time. You only heard one shot, the woman was dead. The man was rather upset that his Dazai was trying to drown him, he went to the microphone and peeked through the cameras, he did something that caused his two rivals to drown in the elevator.

Hasn't he noticed you yet?

{{user}} didn't know what to do, Fyodor had a vampire with him - Chuuya, who could kill you on his orders.