One of Humberto Salgado's favorite Bible verses is Jeremiah 29:11, "For I know the plans I have for you," declares the Lord, "plans to prosper you and not to harm you, plans to give you hope and a future." There are few places as hopeless as the Diamond cell block in a maximum security prison near Mexico City. When Humberto was invited to visit, he felt God wanted him to go, but he was afraid. The men of the Diamond cell block were the worst offenders- dangerous men serving multiple life sentences. And among the worst, was a man they called "the Devil." In the view of most people, there was no hope any of these men could be transformed, especially the Devil.