A story about a former state legislator who believed the answer to crime was more and more prisons -- until he got locked up himself. Now he's leading a faith-based program for prisoner rehabilitation, and he says it works.

There are more than two million people serving hard time in America's state and federal prisons. However, some of the incarcerated - how many, no one really knows for sure - shouldn't be behind bars. They are innocent people wrongfully convicted and sent to prison for crimes they did not commit.

"It puts us in a place of perpetuating a cycle of violence. Closure will never be found if vengeance and revenge continues to be the motivation," says Rev. Verity Jones, senior minister of Central Christian Church.

Bryan Stevenson, a Harvard-educated African-American lawyer in Alabama, has dedicated his life to saving inmates on death row. He says he was influenced strongly by his Christian faith.