suckow's number was in those records. >> reporter: meaning, suckow was in the area when k-c clark disappeared. sarah, meanwhile, her marriage harbor suspicions about james, and not just his cheating ways. it went back to the day james told her about doug carlile's death. >> he just walked into the room was like, "doug's dead." straight-faced, nothing. it was the strangest thing, ever. >> did you think at the time, "i wonder if james had something to do with this"? >> you know, it-- it seemed fishy to me. it did. but again, you don't, your husband could be doing anything like that, you know? >> why didn't you get out of that marriage? >> i was scared of him. you know, everyone wants the fairy tale. everyone wants to be married with a good life with kids. and it kinda came crashing quickly. >> reporter: so finally, sarah started talking about divorce. >> i told him. and he'd be like, "how are you going to feel if you divorce me and you find out all this isn't true and the ki and he's like, "you'll be the horrible person. and i'm going to destroy you." and he was very threatening. >> reporter: w