But we kill too many innocent people. We come close to killing far more, before luck and persistence and the existence of DNA evidence, uncovered by tireless investigators, come to the rescue. Those are the lucky ones. Those are the ones who aren't denied the chance to prove their innocence. How many other people have gone to their deaths because no DNA evidence existed, or if it did was never found, or if found, never allowed to be presented? We don't know. And it's unbearable that we don't know.
So what about those cases in which evidence of guilt is undeniable? Where we definitely have the right person, and the crimes they committed are horrific?
I still don't support the death penalty. Not even for them. Oh, I may want them to die, and die horribly; that visceral emotional reaction, that righteous outrage, is certainly there. But a civilized society should restrain itself. All we gain is another dead person, another traumatized family, proof that we aren't able to rise above bronze age ideas of justice. We engage in violence to punish violence, and make our civilization just that much more violent.
Life in prison, no parole, is enough to keep society safe.
We spend an insane amount of money on killing people. That money would be far better spent on improving the conditions that lead people to violence in the first place. A society that takes care of its vulnerable members has less to fear from them, and so much to gain.
Troy Davis should be the last person to be put to death in this country. We're the last country in North America to execute people. It's time we joined Canada and Mexico in recognizing what justice truly is.