Law enforcement officers gather in Sacramento. (Associated Press)
A Sacramento County sheriff's deputy who was shot while investigating a suspicious vehicle has died.
Sacramento County Sheriff Scott Jones says the 47-year-old deputy was killed after he approached a suspicious vehicle and was shot in the forehead.
Three deputies and a bystander were shot during a series of shootings on Friday that spanned more than 30 miles (almost 50 kilometers) through two California counties.
Deputies were still searching for the armed suspect along a steep, tree-lined river canyon in the Sierra Nevada foothills on Friday afternoon.
Jones says he does not know a motive for the shootings.
Placer County Sheriff's spokeswoman Dena Erwin says two deputies also were shot there as the manhunt continued.
A woman who was with the man was in custody. Authorities say she had a handgun in her purse.