there is potentially the any there. >> the next day, the autopsy confirmed that jessica had indeed been strangled to death. -- >> there was a slightly ligature sure mark around her neck. that was disrupted. it was almost appeared that there was possibly a hand -- >> her hand maybe trying to pull the ligature marks were quite kind of intermittent. >> one more thing the autopsy revealed. she had been sexually assaulted. >> the first thing that goes through your head is why? how? who? i mean, everybody is a suspect and nobody is a suspect. who could've done this? why? >> did she have any enemies? >> none that we knew of. >> coming up -- the man in jessica's life and her volatile relationship. >> she would call us like every