One possible that isn't mentioned in the rule out list.
Alexis Christina Owens
Missing since April 15, 1987 from Port Orchard, Kitsap County, Washington
Classification: Endangered Missing
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Vital Statistics
Date Of Birth: March 9, 1971
Age at Time of Disappearance: 16 years old
Height and Weight at Time of Disappearance: 5'2" (157 cm); 120-150 lbs (68 kg).
Distinguishing Characteristics: White female. Dark blonde hair; blue/green eyes.
Marks, Scars: She has a mole on her right cheek
AKA: Kris, Chris, Chrissy Owens, Amy Owens, Sherry Ann Mc Gallion
Dentals: Not available
DNA: in CODIS
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Circumstances of Disappearance
Owens was last seen in Port Orchard, Washington on April 15, 1987.
At time of her disappearance she has been arrested in California under the names of Alexis Christina Owens, Amy Owens and Sherry Ann Mc Gallion.
Alexis was last seen in 1987 by her sister.
www.doenetwork.org/cases/2389dfwa.html