>> and we went back to her. did mr. hakes ever ask you to make up an alibi for him or to lie to the police? she said no, that he came here after work that night, he stayed all night. >> hakes' girlfriend told police he arrived there around 9:45 p.m., but if he left the restaurant at 9:00 p.m. and his girlfriend lived only 15 minutes away, there was a 30-minute period he couldn't account for. then a background check revealed a startling piece of information. >> michael hakes had been convicted of rape and attempted murder in arizona and served ten years in the arizona state prison for that. and he had been out of prison for about one year as of that time. >> hakes' employers at the restaurant didn't know he was a registered sex offender, and apparently neither did michele harris. >> we were convinced right away that something untoward had happened.