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Case Description
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Theresa Ann Bier was a 16-year-old girl who disappeared on June 1, 1987, from Fresno, California. At the time of her disappearance, she was living with her uncle in Fresno after a tumultuous upbringing, having been removed from her biological parents. On the day she went missing, Theresa planned to skip school to go camping in the Sierra Nevada mountains with a 43-year-old man named Russell "Skip" Welch, who had developed an obsession with Bigfoot. The two ventured to the area near Shuteye Peak, ...Read More
Last Seen: Jun 01, 1986
Victim Details

Dec 21, 2009

Jun 20, 2023

Theresa

Bier

53

15

65 inches

110 lbs

White / Caucasian

Female

Jun 01, 1986

Fresno

California

Fresno County

238

7938

Fresno Police Department

Fresno

California

Fresno County

93721

2323 Mariposa Mall, California

5596217000

Local

Law Enforcement

8736264

Fresno Police Department

7507

Brown

Hazel

Hazel

11/19/2025


Area Last Seen: