Well, that was crazy. And I'm also stunned that she was able to get up.
There's is no way that guy can justify his conduct, and he was arrested. I'm trying to come up with a possible reason he could use and the only thing I can think of is that John Lennon was killed by a fan as well as Dimebag Darrell who was shot and killed while on stage. But I'm guessing he didn't consider her a threat -- he went back to playing within an instant.