Michael
You'll get no judgement from me, I promise. That sounds one hell of a way to go and I really don't envy the guy, but I guess there's always that human line of 'justice' that we can't fully get rid of. Even Spock, as much as he'd hate to admit it to himself.
I don't know if the Spock I knew had a sister. I think he might have told me if he did.