The US doesn't have a monopoly on cops gone bad. Quebec cops have a reputation for shooting first, shooting again to make sure, and maybe asking questions later. Two days ago a Quebec City cop tried to stop a bicyclist riding the wrong way on a one way street. He backed up over him, got out to see what the bump was, got back in his car and drove over him again. He then pinned the injured man to the ground while yelling that he was under arrest. The injured man was in a fetal position, had blood coming from his mouth, and couldn't respond. He was then walked by the cops to the ambulance (no stretcher) and the cop put the damaged bike in his car and drove off. The cyclist died in hospital a few hours later.
Guy Blouin ID'd as cyclist run over by Quebec City police car - Montreal - CBC News