Lori Ann Thiel, 31, disappeared from Aurora, Colorado, in the fall of 1991. Family contact stopped by at least October 1991, though some records list a last contact date of September 1, 1992. She was living with a boyfriend at the time; when questioned he said she packed some belongings and left for Los Angeles in a black Pontiac Firebird. No confirmed sightings or contact have been reported since.

Lori is described as a Caucasian female with blond or strawberry-blond hair, blue eyes, a scar on her left cheek and a tattoo on her left buttock. Height is listed at approximately five feet four to five feet seven inches and weight about 105 to 120 pounds. Aliases circulated in connection with her case include Gilbert, Sinnard, and Stambaugh.

The Aurora Police Department lists the case as open. Conflicting last-contact dates and the unverified account from her boyfriend leave key questions unanswered. Did anyone in the Los Angeles area see a black Pontiac Firebird matching that description in late 1991 or 1992, or encounter Lori under any of her known names?