Officer shoots biker in the back -video
Summary of the defense of the cop from the "police can do no wrong" crowd on here.
When you're protecting the public, you only have a split second to make life and death decisions. Cops are trained to make these decisions. No policeman ever wants to shoot/beat/run over/harass anyone. Bikers/pedestrians/protesters/skateboarders/people who look suspicious are scum, and they're the real criminals for not putting both hands up as soon as the cop says to/running a red light/looking suspicious/talking back to the cop. So it's their own fault when a saintly, well-intentioned, virtuous officer of the law is forced to make the difficult decision to use lethal force.