Happiness at the ill of others is not being emotionally dead if it is justice, else one would be required to oppose all punishment and incarceration to be emotionally alive. That would lead to ill coming to others as victims and their loved ones would see neither justice nor security and criminals would not be constrained from any actions they might wish to try. Thus everyone would automatically be emotionally dead either way, whether from being happy that criminals are locked up and punished, or from allowing those criminals to prey on others. Only by pretending that you are locking up and/or punishing criminals against your will could one even pretend to be emotionally alive. Of course, the insane and the drugged could be truly emotionally alive, since -
Wait, I think I see where you're going with this now . . .
Jaskalas, parole is part of one's sentence. Behave and you are allowed to serve less than the allotted time. Misbehave and you go back in to finish your sentence.