This video may be found offensive to some viewers. The video posted on youtube shows an African American male being removed from his electric wheelchair, and thrown to the ground by two police officers. The policemen say the man was drinking in public, a petty crime I'm sure doesn't warrant the type of reaction that was shown in this clip. The It isn't known where this video was taken.
Listen in the video for the officers saying "Move along." This happened on a public street, and the videographer wasn't impeding the police in any way. Then near the end of the clip, the cops start trying to prohibit the cameraman from recording, getting between the man on the ground, and the forming crowd.