A critical mass against BP turned violent when police threw people from their bikes arresting random people and destroying private property. The one guy was grabbed from his bike and pushed to the ground for not having a back light. Another was plucked so hard from his bicycle that his clothes ripped from him.
One cyclist stopped to video the Hollywood power hungry police kicking a guy, when he asked the cops "what was that for" they came and arrested him as well. The Los Angeles police have a long history of being power hungry cyclist haters, this one takes the cake.