After Nash was returned to jail, i'm sure after they fixed the electric chair(after what Ernest did to it), they fried Nash like they were supposed to and gave Rubin an even longer sentence when they found out what he and Nash were up to. Lyle, i'm sure just stayed until his remained time. However, i would've liked to know Nash's crimes for being sentenced to death. They said in the beginning that he was just a crime czar and bank robber. That title wouldn't neccesarily grant him a one way ticket through the hot seat. I bet he probably killed a LOT of people.