with one of their citizens on death row, the british government asked clive stafford smith to investigatehe case. he was a young lawyer who made a name for himself fighting death penalty cases on a pro bono basis. >> by the time i had gotten there in '94, he had been sentenced to death, had gone up to the u.s. supreme court on appeal, it had come back down. my first thought was, oh, my goodness, how did i let myself in for this? >> despite his reluctance, clive decided to meet the man who was presumed guilty. >> i don't talk to people when i first meet them about did you do it? they don't know you and trust you. kris was one of those rare people that insisted on giving me a lecture about the fact that he didn't do it. and i found that quite convincing, although i will say the evidence against him was pretty strong at the time. >> as a former cop, ron petrillo also had doubts about kris's innocence when he first joined the case. >> initially, i just thought kris just killed these guys. but i'm looking to see where the evidence takes me, and it didn't add up. the deeper i got into the inves