 Suzies Grandmother Ruby takes Det. Perez on a tour of   Suzies home, she shows her a family album and reveals that she is not   Suzies real grandmother but that she raised her as her own. In an odd twist   of events, Van Ryan (Kellys father) had got a girl pregnant and left her   for dead in the glades, Ruby found Suzie shortly there afterwards. Ruby   tells Det. Perez that Sandra Van Ryan (Theresa Russell) is Suzies half   sister and that Suzie had been sleeping with her own niece Kelly (Denise   Richards). (This is all added before Det. Perez goes to talk to Walter). 