someone should clip that whole segment, dude went off
here's one of the vids from that night where it clearly shows blacks breaking in, then the one with his white shirt wrapped around his head/face waves his left hand over to the crowd calling one of them over with the lighter, who was different from the main one they're saying who started it after it was already blazing.
the black rioter who called the girl over dragged a long poster/sign inside, which is assumed to what started the original fire.