. >> we met mark wisehart during his 23rd year on death row at indiana state prison. >> have you done interviews before like this? like tv interviews? >> not like this. i did one last year. >> how did that one go? >> not well. i sounded like a moron. >> at age 20, wisehart was convicted of killing a 65-year-old woman who had volunteered at the homeless shelter where he was living. in his confession to police, he admitted to stabbing her 26 times during the robbery. >> when they sentenced me to death 23 years ago, i thought i was going to be dead before the four or five years was up. that didn't happen and instead i watched men that i knew for 20 years go in front of me. and that's been hard. >> over the years, wisehart became friends with several death row residents. >> they didn't kill anybody for the first ten years i was here against their will. and last year they killed five people that i'd known for a minimum of 18 years. and i thought i was going to be one of them. as far as my sanity, you know, some people would say i've already lost it. i would say i've maintained it by a thin