Although My darker side wants to go with the pit bull idea I need to point out a couple of things;
http://en.wikipedia.org/wiki/Jesse_Washington_lynching
An illiterate, mentally handicapped 17year old convicted after a 1 hour trial and 4 minutes of jury dileberation.
What we let happen to the worst of us can happen to the best of us.
Gitmo is a great example, offer a $50 reward for a tip and you have people turning in their neighbors just to get the $50 and the neighbor is off to Gitmo for ten years being tortured everyday and guess what?
They start making stuff up so you will stop torturing them.
Wouldn't you?
Imagine one of your loved ones being arrested and accused in a case of looking like a terrorist or a mass murderer and taken off to "innterrorgation" and next thing you know he's signed a confession and you know it's false because he was sitting next to you the whole time? And if you contest the confession they're just going to torture you until you confess?
This is madness.
If we are going to execute people we have to do it humanly, not because it says somthing about them but because it says somthing about us.
Just in case you find out later that he was innocent, at least you know you killed him in a well considered and peaceful way, not that that makes it right.
But;
If you find out you were wrong and you boiled an innocent man in oil then fed him still alive to some hogs then you just did somthing really bad.