Clemmons started turning toward Lippert and the barrel of the pistol was coming toward him, he said.
"I'm sorry and I feel, you know, terrible and I mourn the loss of this man," Lippert told investigators. "It's at my hands. I know that. But he was a lethal threat to me. And without a doubt, I'm telling you, if I didn't do what I did, you'd be burying me."