In 1977, actress Christa Helm was found stabbed and bludgeoned outside her agent’s home in West Hollywood, California. Detectives would learn about her infamous “love diary," which kept track of her lovers, but it had vanished. There were also tape recordings of her trysts with her celebrity boyfriends, but those were also missing. After sifting through Christa's past romantic relationships, detectives wondered if she was simply the victim of a random street robbery at the hand of a career criminal. “48 Hours" correspondent Maureen Maher reports. This classic "48 Hours" episode last aired on 10/4/2008. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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