Boston Bomber's Defense Wants 'Dead Man Walking' Nun to Testify

A behind-the-scenes legal showdown is brewing over whether prominent death penalty opponent Sister Helen Prejean can testify on behalf of Boston Marathon bomber Dzhokhar Tsarnaev.
Prejean gained national prominence as a death penalty abolitionist in 1995 with the release of the movie "Dead Man Walking."
She told CNN last summer that she doesn't concern herself with a condemned inmate's guilt or innocence. It's easy to forgive the innocent, she said. It's the guilty who test our morality.