dorothy had been having an affair for the last 30 years. he told me that dorothy was supposed to go out of town that weekend because she claim this guy in tryon, north carolina was going to propose to her that weekend. but somehow she did not get to go on that trip to north carolina that weekend. >> diana realized if holloway was having an affair with dorothy, the motive could be jealous. and holloway's detailed description of what might have happened also raised a red flag for diana. >> he then starts telling me the story of what happened in her house, as though he were an eyewitness. she was just sitting there on her settee watching tv. he came in and he started on her. it took her a good 20 minutes to die. he just went on. and you didn't -- and there wasn't any nudging or prompting. he was relishing talking about