A man kill's people in different ways as part of the primary plot of the movie. Anything gory is usually off-screen, but at times you'd see someone slump to the floor.
There are scenes of rioting protesters in the movie. People get punched, hit, shoved, etc. This is shown on-screen.
A man is shown shot in the forehead.
A man is held down in a bathtub and blood is seen in the water. Later he is shown sitting up in the tub with dead with his arms cut off.
There are many police photos with the victims of the murders.
Two boys are caught trespassing and the man who catches them rapes one of the boys. No nudity is shown, but he is seen thrusting into the boy while the boy is pinned to the ground. The boy is screaming for his friend the whole time. They are interrupted.
A man is knocked out by being hit over the head with a log. He is then beaten to death with the log.
A body is cut up in to pieces and displayed in a shop window as though it were cuts of meat for purchase.