I thought I heard that more video came out supporting the cops in this, but I can't find any link for it.
I wouldn't be surprised. The in-the-middle-of-everything cameras always seem to turn just in time to see the cops doing something, but not what happened just before. Anybody with any sense wanting to get good, unbiased footage would be using a long lens from outside and/or above the crowd, and not panning around constantly.
I know on high-risk security contracts, our preference is to get at least two camera positions above the area, each with 2-4 stationary cameras - one wide angle and the rest watching potential trouble points, plus one handheld. That way there's no question what somebody was doing just before the camera turned to them.