And he called for help first. Repeatedly, so it isn't like he just started blazing away.
I mean it might all come out and end up that he did scare this kid so much that the kid felt he had to attack or be killed...the point is, we don't know. It could have been either way. I tend to think if the cops didn't take this guy in right away that they felt he was justified...but cops are notoriously stupid when it comes to making judgement calls, so who knows.
It will eventually come out. In the meantime, it's insane to pretend you know what happened, who is guilty, who is innocent, or to paint this guy as some sort of black-hating Hispanic monster. Let the system work. It has it's problems, but it's still better than hysterical mob rule, which is what the likes of Peach and a few others seem to go for.