i'm clearly against a death sentence, actually against the american system of hard punishment as a whole.
main reason, i absolutely don't see this system work. it might feel right in an eye for an eye way. but it does not work. it does not believe in any criminal actually change. and so on.
i do see the need for a real live long imprisonment for very few cases. like german sicherheitsverwahrung. you could roughly translate that as safe custody. that would be something for a serial killer or serial rapist.