http://en.wikipedia.org/wiki/List_of_exonerated_death_row_inmates
No, I don't believe in the death penalty, no matter the crime, I've had this argument with people before, it amazes me the lengths people will go to justify to themselves and others killing an unarmed person, it also amazes me how like the U.S Iran is but you will find all sorts of people ready to jump to the defence of the U.S when they do something wrong.
yeah that shit creeps me out. i don't like the death penalty; it's almost like people have this god complex, where they want to see the people they hate die. nevermind the possibility of a false conviction, it just doesn't feel right for a group of people to decide whether someone lives or doesn't.
It's just engineering to me. Everyone dies eventually, and many people die prematurely due to bad luck. Yes, life is precious and I don't mean to downplay it, but if someone is put away for life they are just an expensive drag on society with no hope for anything resembling a meaningful existence.
Furthermore, it is completely hypocritical to engage in wars and maintaining our (the U.S.) empire knowing damn good and well that thousands of Americans and millions of non-Americans are going to be killed and many more maimed, then turn around and be to purist about executing even the worse criminals. Of course I'm probably talking to a couple of people who don't support our policies in this area so I don't mean to put up a straw-man here. But we do live in a society which does these bad things (again, here in the U.S.)
I am currently and have been for a while now against capital punishment. Philosophically I don't have much against it, but operationally it is _proven_ to not be reliable. I may think about supporting it again, but only if some crimes are immune. One of these would be cop killing. That seems to be one of the main ways that innocent people get convicted. That is, when the cops need to make an example of someone and don't care much about who it happens to be. Also any attorney or other justice official who cheats to get an innocent guy convicted would face VERY severe punishment himself if caught.
As for the actual deed, I think that the Chinese do it best with a bullet to the brainstem. Quick, reliable, painless, and cheap. I little bit more humane also since they march someone out and keep them occupied by walking until the last seconds when they force the person to kneel down.