robbery. served 16 years. dna proved he wasn't the rapist. eugene horton, wrongfully convicted of sexual assault. served 18 month. dna tests led to his conviction being overturned. and we showed you stephen brody a minute ago. you can see more of his history at cnn.com/larryking. and with us, stars of "convicti "conviction." hilary swank, bettery waters, director tony goldwyn and attorney barry shek, director of the not in project. dallas city attorney, what led you to hold on to this as opposed to other d.a.'s who didn't? >> i was elected as a new d.a. in dallas county in 2006 and took office in 2007. on my first week in office i was requested by a long-time sistant d.a. t sign form to allow evidence to be destroyed.