and eric mullens?ting it down and thinking, no, it didn't say that. and picking it back up again. >> but remarkable as ralph's letter was, it still wasn't the whole story. a few weeks after the murder, he mustered up the courage and told the police -- >> while he was held captive, he had asked to go to the restroom and he was sexually assaulted in the bathroom. >> why didn't he say anything about that before? >> his explanation was, that he was embarrassed. >> it might be a little bit difficult to talk about, but the smallest details could be very important, so keep that in mind. >> ralph agreed to show the investigators exactly what happened, and where. >> he grabbed me with the other hand on my hip right here. and he proceeded to assault me. >> so that was the whole awful story. but if ralph thought that sharing his new more detailed recollections would clear the air, he was wrong. what did you think when you saw it? >> i was pretty blown away by what was written. >> coming up, back at home with dete