Wow, this scene is even crazier than we thought.
Here's the female purse snatcher (more info here) being held down on the ground as they waited for police to arrive. The lengthy struggle includes the suspect appearing to bite one of her captors, and he then appears to hit her.
UPDATE 10/01/2013: Some are now trying to get the Kent County Prosecutor to arrest the man in the video. Click the link to see the petition: http://chn.ge/1g0zBdn