Could DNA unlock answers in questionable conviction case?

Judy Rybak is a “48 Hours” producer. She investigated the questionable convictions of Darryl Pinkins and Roosevelt Glenn for the episode, “Guilty Until Proven Innocent.” The all-new investigation airs Saturday at 10 p.m. ET/PT on CBS.About three years ago, I was on Twitter when I spotted a cry for help from DNA expert and director of the Idaho Innocence Project, Greg Hampikian. He tweeted that his Innocence Project had more cases of wrongful conviction than the money he n