Shooting a person in self defense? Yes. Absolutely. They were shooting at him, shooting back is perfectly acceptable.

But ONCE YOU ARE SAFE, it is no longer self defense. Unconscious=no danger, no danger= murder.

Ersland grabbed the semi-automatic Kel-Tec .380 in his pocket.
"And that's when I started defending myself," he said. "The first shot got him in the head, and that slowed him down so I could get my other gun."
What kind of thought process is that? Can anyone explain WHY on earth any rational human being would think "I just shot this guy in the head, so now I need another gun to take care of him?" There's something fundamentally wrong there. I shoot. I have had guns since I was 12 years old. I'm a lover of good guns. But this guy honestly makes me think that people should have psych evaluations before they are allowed to carry a deadly weapon...