Okay, facts:
1. The kid was shot in the chest.
2. The kid is of African American descent.
3. The man had to explicitly get out of his car
4. The kid is now dead
5. No charges have been brought up against the man
Either way, it does not look like anything could make this look good for him. If it was me, and I had a gun in my face, I'm sure I'd probably stop whatever the hell I was doing doubly as fast. Especially in a gated neighborhood.
Edit: New Fact- Shit just got real. Account in the OP is actually accurate. All the apologists are eating crow right now, and the guy turns out to be a huge shit head. Oh man, sad news all around.