I know what you mean. The little ole softie in me says, "awwww, he's just an old man. Let him live out his days in peace and comfort." Then the rational side says, "Wait a minute! The guy he shot IN THE BACK 6 TIMES didn't get to be an old man! and what do you mean, you don't even remember his name? Was he that unimportant to you? Well, he was pretty important to him mom & dad, and to the grandson who caught your sorry @$$." I don't think this man has any remorse at all. He is mentally ill, for sure. He has literally become someone else and believes that at such he doesn't have to be responsible for anything his old persona did. I don't know if he would be much of a risk to the general public, but he still needs to be locked up. He committed a terrible crime, violated his parole, created a completely new identity and started his life over as if it never happend. Can you imagine being his new wife or kids? They dind't know anything about his past. What a kick in the teeth.
My Vote: prison, for the rest of his sentence. For being a man without character.