Booth was last seen in Skagit County, Washington on May 19, 2008. She went on a dive in Rosario Bay with her advanced scuba diving class at the Rosario Beach Marine Laboratory, and failed to resurface. An extensive search of the water turned up no sign of her. She is presumed to have drowned.

Booth graduated from Columbia Adventist Academy in Battleground, Washington in 2007. She was a freshman marine biology major at Walla Walla University at the time of her disappearance. She lived in Brush Prairie, Washington when she was not at school.