If one of the marchers got into a one on one shouting match with someone and called him this and that and they guy punched him back or somrthing and the protester claimed "free speech"...i see the point
I am no fan of that Nazi bunch, but, they had a permit to march, they were abiding by the law. If they did not abide by the law it is up to the police to rectify the situation.
The looters and vandals broke the law. They should have all been rounded up and thrown in jail, made to pay fines and make restitution. There is NO excuse for what those people did.