about the guy didn't seem right to him. >> i received a call from gabe ferris, and said, i understand you're the investigator, i would like to talk to you. and then he's asking me all kinds of questions about the homicide, and he became very suspicious to me at that point. >> did you think that maybe this guy was the killer? >> absolutely. >> just by his behavior? >> right. my instincts. he was very nervous. i was really suspicious of him. >> although he didn't have the dark hair that matched what was found on the victim's body, other pieces of the puzzle seemed to fit. ferris admitted to having a sexual relationship with cheryl miller up to the week before her murder. and police found ferris' fingerprints on a dresser near cheryl miller's body. still, ferris seemed to have an alibi as solid as any imaginable. he said the night of the murder, he was 65 miles away in a cottage by lake huron, celebrating his honeymoon, making love to his new wife. >> i went to the prosecutor with