Personal opinion; Snipers are the best (next to drones,) only terminate the really bad dudes / dudettes
Not to derail, but I've got bad news for you about the drones...
Back to the matter though, I didn't agree with his profiteering after his service, even if vets get terrible support after the fact, but there's no doubt the guy did the dirty work nobody else wanted to, or was skilled to do. It's a shame when anyone's cut down like that.
Can't agree with the "any proud American" comment. I'm not American, and I think it's a tragic loss.
Edit:
To stop semantic arguers, yes, he cut people down too, but those people supported religious patriarchal rule, that included throwing acid in women's faces, murdering little girls, and shutting down discourse with public hate campaigns.