The death penalty is barbaric, cruel, uncompassionate, and inhumane, and this archaic means of punishment should be abolished immediately. The state, being highly fallible, should absolutely NOT have the power to put someone to death.
We do not teach killing is wrong by killing, particularly when potentially innocent lives are at stake. Fear of punishment has not acted as a deterrent for those who do commit terrible crimes, and the amount of posthumous exonerations is staggering. Nobody has been served, least of all the implied “public”, by an innocent person’s life ending.