agrote
Quote: But where do this rules come from? You're still arbitrarily deciding that once a person has murdered somebody, they no longer deserve to live. What is the basis for this decision?
The basis is in the principle of retribution.
Almost all european countries don't accept that principle - and, therefore, have no death penalty.
Another argument for death penalty is dissuasion. But there are no studies, to my knowledge, that show that when a state implements death penalty, the number of capital crimes decreases.
I think the most acceptable principles, in the case of punishing criminals, is to prevent them from doing it again and, if possible, rehabilitate them.
For the first purpose we have jails, long term detentions. But I think that, regarding the second purpose - rehabilitation - we have not find yet the most adequate solutions.