Joanne Gaye Illerich, 38, was last seen leaving her family’s home in Knights Landing, California, on May 7, 1999. She departed sometime between 9:30 a.m. and 1:00 p.m., reportedly driving a dark blue 1991 Mazda pickup with a white camper shell. Both Joanne and the truck have not been located.

At the time she disappeared Joanne was experiencing emotional difficulties, described as bouts of anger, delusion, and possible suicidal thoughts. She also had physical pain in her neck and right arm and sometimes wore a brace. Authorities believed she took a 9mm semi-automatic pistol with her. Known places she visited include Bucks Lake, Feather River Canyon, Point Reyes, and Sacramento; searches in those areas have not produced answers.

Her case remains unsolved. Anyone with information is asked to contact the Sutter County Sheriff’s Department — did anyone in Knights Landing or the listed locations see Joanne or her pickup around May 7, 1999?