memory of what had happened, but she was able to tell everybody who she had been with that night. >> reporter: the person cathy had been with that night? sam lopez. when police asked sam about that night, he remembered something very specific. >> a hickey. >> on her neck? >> on her -- right here. covered up with her bra. >> you mean way down here on her shoulder? >> right here. right here. >> reporter: sam claimed it was no big deal. >> i didn't want to hit her up, like, tell her, "hey, you know, who were you with last night?" whatever. >> reporter: but that night, police records showed sam received two traffic citations, both while driving cathy's car. one was an open container ticket for drinking alcohol in a parking lot. the other for failing to stop at a stop sign. the cop who pulled sam over for not stopping said sam flew through the intersection, and when he approached the car, the cop said it looked as if sam and cathy had been arguing. but he did say cathy looked fine.