The person who posted the video said: "The man in the white shirt on the left walks towards police and is clubbed. Others are also clubbed, and a person in wheelchair is knocked over. Screams of "he's mentally retarded" can be heard. An officer on a bike deliberately smashes into two people taping the incident. Other cops club them, even after they're on the ground. After several seconds of them not moving, a cop clubs them again and is pushed back by another cop."