Three children – ages 8, 9, and 14 – and a 21-year-old were killed in the shooting, according to the San Joaquin County Sheriff's Office. Stockton Mayor Christina Fugazi said the 8-year-old who was killed was a student in the Stockton Unified School District. She added that the child’s parent also works for the school district.

Dr. Eric Cordes and his wife were shot to death at their California home on Sunday. Police believe it was a targeted attack. A suicide and burned car may also be linked to the murders.