sure I'll go berserk and everything, but what you'll be doing is also taking a love one of someone else, every one is always valued by someone even if they are merciless rapists...
and beside, prison until they die is already more than death, so my anger will be calmed by the thought of the culprit experiencing hell

but sadness will remain, atleast with no thought of killing someone. and maybe even preventing something like that happening to someone else. Since once someone dies, there is no way they can come back, making more sacrifices is pointless... that is why im against the death penalty