elizabeth gilbert found stacy in corsicana. >> they kept saying that the fire... >> i told her i was a writer, i'm from houston. i interviewed her, i taped her, and she was very... seemed kind of reserved, nervous. just a person who had a lot of tragedy in her life. >> narrator: todd had begged stacy to visit him, but she refused. >> narrator: nevertheless, stacy said she didn't believe todd was capable of killing the children. >> she really convinced me that she felt that an injustice had been done. my sense in the interview was, like, she left me with the opinion that todd was innocent because she didn't feel that he had done this. she didn't feel like he was capable of doing that. >> narrator: now gilbert wanted to sort out the other evidence. >> i went up to austin and got the records of the trial. i'm in, you know, copying these records. i'm reading these reports. >> narrator: she dug into the story of that jailhouse informant. >> a red flag to me was johnny webb. the idea that a prisoner would confess to a complete stranger that he had committed a crime just didn't... i just didn't buy that. >> narrator: