>> i asked him what he was talking about. he said she wouldn't have sex with me. it made me mad. >> and she says he told me i shot her three times in the head. >> execution style. >> he called it execution style? >> yeah. >> the number of shots fired was inside information. police hadn't released those details to the media for these very situations. >> no one knew but us, the killer, and the medical examiner. >> but if hilton's story were true, why hadn't she gone to the police sooner? >> she was scared of jeff thomas. she was scared for her own safety. >> it was only when she was actually face to face with a police officer, the traffic stop, that she was willing to talk. >> with the information barbara hilton provided to police, they now had enough evidence to get a