In the 2017 case, Sanchez, 18 at the time, was driving a Buick Century on a rural road near Los Banos, with two younger teens in the backseat. She reportedly swerved onto the shoulder, overcorrected and crashed through a wire fence; the car overturned in a field. Her 14-year-old sister, Jacqueline, was killed, and the other girl was badly injured.