// an assault on a frail, old, homeless, black woman //
I am not seeing that on the video. She fell over. She had been inciting crowds on previous days, and the police had taken her 'address'. Not sure about frail part either. She was unsteady on her feet due to being over weight.
Los Angeles Times report:
// A heavyset man with glasses and tattoos then moved in to tear up her signs, leading her to push back at him and fall to the ground.
LAPD Officer Tony Im said Friday that police would write up a misdemeanor battery report on behalf of the woman, using the video and information they obtained from her at another confrontation in Hollywood on Wednesday.
On that day, Im said, the woman also incited the crowd with what he called racial slurs. Police from the Hollywood station went to the scene and “kept the peace,” he said.
Police took down her name and Los Angeles address at the time, but Im did not have the information available for release. He said police would visit the address she gave to interview her. //
http://www.latimes.com/local/lanow/la-me-ln-trump-supporter-hollywood-20160828-story.html