One winter day, there was a man standing in the middle of someone’s front yard. The person stayed there for several weeks without moving and the owner of the yard didn’t mind. Eventually the man left.
Who was he?
#1 - He stood on large slabs of ice to reach the fan and put his head in the noose. As the ice melted, the noose tightened, and eventually he was left hanging. Thus, the only other thing in the room was a puddle of water.
#2 - Dan is an executioner by profession. His wife had been sentenced to death and he was the one to carry out the sentence. It was completely legal for him to do so.
#3 - Since it's a lady's bathroom, and people would notice a man entering. So number 3, the only lady in the restaurant is the killer.