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Allison Bayliss Missing Person Case

Last seen in Danville, California on May 23, 2011

Victim Details

Jul 10, 2011

Mar 28, 2023

Allison

Bayliss

30

15

68 inches

125 lbs

White / Caucasian

Female

May 23, 2011

Danville

California

Contra Costa County

94526

No

27746

Contra Costa County Office of the Sheriff- Danville

Danville

California

Contra Costa County

94526

510 La Gonda Way, California

9253143700

County

Law Enforcement

https://www.cocosheriff.org/bureaus/field-operations/special-operations-division/danville

SP1109049

Contra Costa County Office of the Sheriff- Danville

Brown

Blue

Blue

07/11/2026


Area Last Seen:

Case Description

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Allison Taylor Bayliss, a 15-year-old from Danville, California, disappeared on May 23, 2011. She was last seen riding her bicycle near San Ramon Valley High School. Later, her bike was discovered locked near the Golden Gate Bridge. Evidence, including search history and notes left behind, suggests Allison took her own life by jumping from the bridge that day. Allison was a high-achieving student, involved in sports and music, but struggled with personal challenges. Her body was never recovered, ...
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Last Seen: May 23, 2011

Links to Additional Sources (10)

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  • Allison Bayliss | State of California - Department of Justice
  • Missing Person / NamUs #MP11631
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    Latest News

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    Forum Posts (3)

    Does anyone else find it puzzling that Allison managed to lock her bike near the Golden Gate Bridge ... ...Read More
    10/05/2024
    I've been following Allison Bayliss's case, and I can't shake the thought about her bicycle being fo... ...Read More
    06/03/2023
    Has anyone else noticed the symbolism in Allison's case with the Golden Gate Bridge? It's both a lan... ...Read More
    04/30/2023
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