Wow.. it's amazing how the way they edit a clip can make you look at something a different way. The clip I have seen shows the officer trying to get the wrists of the girl in the black top so that he can cuff her. She was resisting and then her friend in the pink shirt gets in between and begins shoving him away so her friend can get loose. That's when he punched her. Then it shows him continuing to work on cuffing the girl in the black top and another girl trying to hold the girl in the pink top back so she doesn't get in the middle again.
The clip on that link shows the punch first and then shows some of what happened leading up to it after the punch. Totally backwards and very misleading.
A local news station posted this as the raw video from taken from someone's cell phone.. 2:45 worth
http://www.king5.com/video/featured-...-96353299.html