Basically, when two guys start chasing you, you can hide in the wardrobe (just do it fast) and then you'll be able to leave. Also, search for cues (hidden messages) so that you can enter other rooms. If you have any other questions or need more help I'm here! :)
Yeah, you can. You kill him in that room when you shoot him. There was a bug that is now fixed, thanks for telling me! And I'm glad you like dark humor, haha.