A rookie police officer on the job for only a few weeks was shot and killed Thursday night in Davis, California after responding to what appeared to be a routine call.

News sources say 22-year-old Natalie Corona answered the call about an automobile accident and was gunned down by a man who opened fire at the scene. Corona was rushed to UC Davis Medical Center in Sacramento, where she later died. Corona was the first David Police Department officer killed in the line of duty in six decades.

Area residents were advised to shelter in place and police conducted an overnight search before finding the suspect dead inside a home about a block away from where the shooting took place, apparently of a self-inflicted gunshot wound.

Corona graduated from the Sacramento Police Department’s training academy in July and completed her field training in December. Her father, Merced Corona, was a 26-year veteran of the Colusa County Sheriff’s Office and pinned his daughter’s badge on her during her swearing-in ceremony.

Davis police have not yet named the suspect or identified a motive for the shooting.