Deputy Jerralee J. Jacobus was born on September 16, 1955 at the Army Hospital at Ford Ord, California. Jerralee grew up in Seaside, California where she attended San Carlos Parochial School in Monterey, Junipers Memorial High School and then graduated from Monterey High School in 1973. While in Junior College she took classes in sign language and worked at a school for the deaf as a volunteer.

Jerralee received her B.A. degree in criminology from Fresno State University in 1978. At the age of 25, Jerralee had only been with the department for 22 months, when her partner Deputy Craig Knox and herself were involved in a head-on collision with a drunk driver while responding to a burglary call. They were both killed instantly. At the time of her death, Jerralee was survived by her parents, Arthur and Dora Jacobus, of Seaside , her two sisters, Lora Jacobus, of Monterey; and Candice Jacobus, of San Francisco; and her paternal grandfather, Ralph E. Jacobus, of Seaside.