and setting it on fire. all these years, pat suggested, jennifer's whole family may have been involved in a massive cover-up. the documentary ended with what pat intended as the climactic interview. >> i'm on your side, but there's people out there that have been telling me stuff. >> reporter: here tom has no idea that a microphone and two cameras are placed in the room. pat is moving in for the kill. for what he hopes will be tom's confession. >> tom, i know you're at your sister's accident, jen's accident. >> no, i wasn't. >> tom i know you were. >> i have told me things for two years, that put me at your sister's accident. >> i love my sister.