Allison Taylor Bayliss, 15, of Danville, California, disappeared on May 23, 2011. She was last seen riding a bicycle near San Ramon Valley High School; her bike was later found locked near the Golden Gate Bridge. Evidence including search history and notes left behind suggests Allison took her own life that day by jumping from the bridge. Her body was never recovered.

Allison was described as a high-achieving student who participated in sports and music but faced personal challenges before her disappearance. The case remains a tragic loss for her family.

If anyone knew Allison, saw her that day, or has information about her movements near the bridge, please come forward.