Well, lady reverend, how 'bout so we gurantee they never murder anyone else?
One view to which the rebuttal would be to lock them up for the rest of their lives in solitary confinement so they can't harm anyone again. Another view is that human life is so sacred, it is unjust for someone who brutally snuffed out a human life to continue to enjoy any of the pleasures of life himself.
Sure cuts down on repeaters.Like they used to say in Texas,”We don’t hang horse thieves because they stole a horse,we hang them so horses won’t be stolen.”