To kill a killer for killing is the dumbest thing ever. We don't have it in Europe and the EU try to promote it to the rest of the world for a good reason. It's cruel and dramatic. Turning it around and saying that cruel people deserve it is just hypocritical. If we kill killers we're just as bad. Secondly, the government shouldn't have the right over people's lives. It's too much power.
Eighth Amendment and the constitution The Eighth Amendment in the Bill of Rights clearly states Excessive bail shall not be required, nor excessive fines imposed, nor cruel and unusual punishments inflicted. Some may say the death penalty is justice but it is actually just revenge to the murderer. If killing people isn't a "cruel and unusual punishment", what is?