I was under the impression that this Uber Driver, Perry was minding his own business, took a wrong turn into this crowd, who swarmed him, and this dude with an AK postured up on him.
He may still have had the legal right to defend himself, and genuinely thought his life was in danger.
however, from these more recent developments, especially, with his comments, about planning things, and anticipating how they may unfold..it seems like this Perry guy was looking for a fight. I haven't examined everything, but it does make his actions a little more suspect.