Which one is guilty of assault?

[Johnny Cupcakes]

(07-12-2015, 09:12 PM)Devils Advocate Wrote: Lol. So you can tell from the angle we're givin that the security guard wasn't threatening again after the initial exchange?

The security guard was never threatening in the first place.  The security guard acted in self defense, and this nut job was the aggressor, and yes, that is incredibly clear when watching this video.