This is a good microcosm of exactly what happened Saturday in Charlottesville.
Unite the Right event organizer Jason Kessler attempted to hold a press conference on Sunday to address what happened at Saturday's insane rally. Predictably, a leftist mob came to shut the press conference down.
Police, once again, did nothing to maintain the peace and let the mob attack him. After the violence broke out and the press conference was shut down, then the police finally stepped in.