Solid is a bit of a loose statement though isn't it, as someone else said, what if there was new evidence after the triggers been pulled, even though beforehand the evidence looked 'solid'? I agree with manual labour style work, like community service but more tightly controlled. What about people who are in fact reformed by their experience? Take londons biggest gangsters, The Krays, for example. One of them now actively tries to help people with problems after he found God whist in prison (what was God doing in prison i hear you ask). If he was killed, he wouldn't have helped the hundreds of people that are now better humans wondering round on the earth making it better for us. Which is the whole point, yes?