carjacked at gunpoint by her estranged husband brian winchester. investigators suspected the two were behind mike's disappearance but without evidence, their hands were tied until, that is, a scary consistent involving a gun threatened to blow the couple's marriage apart. denise ran to police but they had something else they wanted to discuss. back to dennis murphy with "secrets of lake seminole. " >> denise williams had been carjacked at gunpoint by her estranged husband brian winchester. and now she was sitting in a police interview room giving her version of the abduction. >> what would lead him to this? >> to want to kill himself? >> for years, police -- felt that brian and denise were the keys to understanding mike's disappearance. and now with the kidnapping, they believed brian was taking no chances in getting rid of the one person who might know what he had done. >> i'm sure at some time he told you something. i'm telling you, he killed mike and he was going to kill you to make you go away. >> the detective pressed her, asking denise if she really knew the man she had married. >> that person you saw today, he killed mike, didn't he? >> that person could. >> and he did. that's who he was then. he has conned you to no end. it's not your fault.