>> it was at one of these parties that bob met darla cope, one of the women in the pictures. she was ten years younger than bob, and there were rumors they'd had an affair. but darla told police she had an alibi for the night of the murder. >> there was no bad blood, there was no reason for her to commit this crime, nor a jealous boyfriend or husband that would have come in and committed the crime because of her. >> when questioned, amy bosley claimed that bob did most of the partying, but the evidence contradicted that. >> she partook in the same type party atmosphere that she did. it wasn't uncommon for her to be on the houseboat with other people in some sort of state of undress. >> there were a lot of rumors surrounding bob and amy's relationship and their marriage. i think that people thought that it was possible that both of them were having affairs. >> and when police interviewed the bosleys' children, who were 7 and 10 at the time, they