For: -they did a harmful crime -it makes people think before committing a crime -the victims can rest in peace -killers would be scared of it -ending their life would be better thus they won't don't do it again
Against: -Life is worth than death -Jail is hell -its crazy -it won't really help cause murders still will do it -there is more to justice the murder might not tend to do it or they still have more to the story