Allison Taylor Bayliss

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Above Images: Allison, circa 2011

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Vital Statistics at Time of Disappearance

  • Missing Since: May 23, 2011 from Danville, California
  • Classification: Lost/Injured Missing
  • Date of Birth: February 7, 1996
  • Age: 15 years old
  • Height and Weight: 5'8, 125 pounds
  • Distinguishing Characteristics: Caucasian female. Brown hair, blue eyes. Allison's nicknames are Alliy and Alliygator. Her ears are pierced and she wears a dental retainer.
  • Clothing/Jewelry Description: A red zip-up hooded sweatshirt, blue jeans, gray half mittens, mismatched flip-flops (one green and one yellow) and a blue backpack. A photo of Allison in these clothes is posted below this case summary.
  • Medical Conditions: Allison has Asperger's Syndrome, a form of autism.
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    Details of Disappearance

    Allison was last seen riding her black, purple and white mountain bicycle in front of San Ramon Valley High School, where she was a sophomore at 8:00 a.m. on May 23, 2011. She has never been heard from again. Her family reported her missing that afternoon when she didn't come home from school. At 4:45 a.m. the next day, her bike was found locked to a rack in the Battery East parking lot east of the San Francisco side of the Golden Gate Bridge. Allison's bike helmet was hanging from the handlebars.

    Authorities determined Allison took a the Bay Area Rapid Transit (BART) train from her Danville, California home to the Embarcadero stop in San Francisco and then rode her bike nine miles across the city to the Golden Gate Bridge. She jumped from the bridge at approximately 10:00 a.m. the day of her disappearance. She left behind suicide notes for her family and friends, and her computer history showed she'd looked up directions to the bridge. She was a popular straight-A student, ran track and was a member of the junior varsity swim team in 2011, and she also enjoyed playing the piano and posting her musical performances on the internet. Her body has never been found.

    Bayliss in outfit
    Above: Bayliss on the date of her disappearance

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    Investigating Agency
    If you have any information concerning this case, please contact:
    Contra Costa Sheriff's Office
    925-646-2441

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    Source Information
    The National Center for Missing and Exploited Children
    California Attorney General's Office
    NamUs
    The San Francisco Examiner
    The Daily Mail
    KGO-TV
    The International Business Times
    Danville, California Patch

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    Updated 2 times since October 12, 2004.

    Last updated July 1, 2015; two pictures added, details of disappearance updated.

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