A Tulsa police officer has been charged with manslaughter in the shooting of an unarmed man who ignored commands to stop approaching his car. When he appeared to be reaching into the window of the car, the officer fatally shot him. The video, available at the link, sure makes it look like he wasn't much of a threat.
On the other hand, police officers tell people to stay away from their car for a reason:
Kyle Dinkheller died because he kept issuing warnings. Don't think for a second this video isn't part of police training nationwide. If you get involved with the police and won't follow instructions, I have a hard time with charging them if things get deadly.