if suckow killed carlile, could he have killed casey clark as well? >> they checked mr. he time against the phone records they acquired back when mr. clark disappeared and mr. suckow's number was in those records. >> meaning suckow was in the area when casey clark disappeared. sarah meanwhile whose marriage was falling apart had begun to harbor suspicions about james and not just his cheatin' ways. it went back to the day james told her about doug carlile's death. >> he just walked into the room and 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? >> it seemed fishy, it did. but again, your life's already crumbling. you don't want to think that your husband could be doing anything like that. >> why didn't you get out of that marriage? >> i was scared of him. so. everyone wants the fairy tale. everyone wants to be married with a life and kids and it came crashing quickly. >> so finally, sarah started talking about divorce. >> i told him and he'd be like, how are y