Maybe he he did. Maybe there’s a note to them in his writings. I hope there is. As for closure. Does it matter if it’s the state that executes his sentence, or if he does it himself? That’s a hard one.
I think you’re missing the point. I don’t find him sympathetic. I find his actions after the fact may have been empathetic. He definitely did wrong shit, he murdered her. The question is, at what point, after the fact, could he have done better than executing his own sentence without delay. Taking into account his own family as well as hers. Both families being equally innocent.