Real Name: Amanda Nicole Eileen Campbell
Location: Fairfield, California
Date: December 27, 1991
Date of Birth: May 7, 1987
Weight: 59 lbs.
Marital Status: Single
Characteristics: Caucasian female, Blond hair, blue eyes, Nikki had a rash around her mouth at the time.
Details: On December 27, 1991, four-year-old Nikki Campbell went to play with her brother and a friend in the front yard but at 4:30pm, she left on her bike to go to a friend's house around the corner, but she never arrived. Her bike was found in a field that evening. Authorities searched the crawl space of a residence in June 2001 that was just a block from where she vanished because of an informant's tip that said that she had been lured there and murdered, but no evidence was ever found. Authorities believe that her abduction was related to several other unsolved disappearances in the local area, including Michaela Garecht, Amber Swartz, and Ilene Misheloff, and the murder of Angela Bugay.
Suspects: Tim Binder has been named a suspect in Nikki's case, but he maintains his innocence.
Extra Notes: The case first aired on the June 13, 2002 episode.
Results: Unsolved. Tim Binder is thought to be a suspect because of his incriminating postcard of four fingers shortly before Nikki's disappearance. However in 2009 after the reappearance of Jaycee Dugard, the FPD also received a search warrant to find evidence to link them to Nikki, but it turned up nothing.