I don't know
I'm not that quick to call the white guy a murderer because HE USED A KNIFE.
----If I was a murderer mode=on--------
I'm in the woods, with a shotgun in my hands... if I make a decision to kill someone, I'd use the shotgun damn near every time, if I had the choice.
Besides being far more effective and capable of taking down my target possibly before he knows I'm there... It would make it alot easier to claim it as a hunting accident or even self defense if I got tied to it.
----/off---
Now if someone became a threat at close range, or I somehow got disarmed, then I would use the knife--but those situations are vastly more probable in an SD situation as opposed to a premeditated hate crime.
In the other hand--if attacked, I'd probably revert to the old "If their head is still attached, and they haven't surrendered, they're still a threat" standard... Didn't Col Cooper say something about "Don't count someone out of a gunfight until their head is separated from their body by at least 4 feet"?
The only logical scenario I've got given the kinds of wounds the survivor had would be something like "Vang fired and winged him, for some unknown reason his weapon was out of play, extreme CQC ensued, Vang got disarmed, and the survivor finished him with a knife"
In all honesty, if someone shoots me intentionally and I survive it, there's a 99% chance that I'm either gonna kill them then and there or die trying. If firearms get thrown out of the fray, then they're gonna get stabbed.
I really doubt the survivor's wounds were self-inflicted--too minor if (as is my impression) they were caused by a hunting shotgun at close range. Even if he did figure out someway to do it I'd think 1 hand would have been enough.