I’ll type just as slowly, just for your benefit...based on the video, on what we’ve seen, the police officer overreacted and struck a woman in the face, causing her to bleed, and then arrested her. It’s plain to most reasonable people that he could have arrested her without striking her.
The cop also knew he was in public, in plain view for dozens of witnesses to see. I’d have to think that what he did was for a valid reason.