Video helps free man from death row

to an NBC News exclusive. And the man now free after spending nearly three decades on death row. His release coming with the help of a video that his jury did not see.That tape never before broadcast until now. And we want to warn you, it is upsetting. Dan Slepion reports.>> Last November, Jimmy Chris Duncan walked out of a Louisiana prison after spending nearly three decades on death row for a murder that multiple judges now agree never happened. Your mom passed while you were on death row. >> Yeah.Oh, I l ...