Did anyone notice that the girl turns to look at the cop and her right hand moves toward her shirt, almost like reaching inside. The hand movement is also natural for a person when they turn to the left. Without knowing the circumstances, she could well be hiding a razor blade in her blouse, if not, that was too much force to use. I did a stint as a corrections/booking officer at a county sheriffs office for a couple of years and you wouldn't believe where people hide things like knives, drugs, razor blades. They don't call it a full cavity search for nothing. (that vision needs to leave my head). Anyway, it appears to me that he was in full control when he nailed her but as others have said, that video does not tell the whole story.