The Latest: Father doesn't know cause of son's deadly attack

RIVERSIDE, Calif. (AP) — The Latest on a shootout that killed a California Highway Patrol officer and a gunman (all times local):

11:40 p.m.

The father of a gunman who opened fire on California Highway Patrol officers, killing one and wounding two others, says he doesn't know what prompted the gun battle.

Dennis Luther tells KABC-TV that 49-year-old Aaron Luther of Beaumont had been depressed and was having physical and marital troubles before his car was stopped near a freeway in Riverside, east of Los Angeles.

CHP says an officer had called a tow truck when the driver pulled a rifle and opened fire, fatally wounding him. Two other officers were wounded, one critically, and two civilians were slightly injured before the gunman was killed.

The father says his son had two children and a stepchild to whom he was devoted and he doesn't know what his son was doing with the rifle.

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10:35 p.m.

The California Highway Patrol says one officer is dead, another in critical condition and a third has minor injuries after a shootout that also killed the gunman.

Dozens of gunshots were fired Monday near Interstate 215 in Riverside, east of Los Angeles.

CHP Assistant Chief Scott Parker says an officer who pulled over a white pickup was filling out impound paperwork when the driver pulled a rifle from the truck and began shooting.

The officer was fatally wounded but managed to call for help. Authorities say CHP officers, Riverside police and sheriff's deputies arrived and continued trading gunfire. Two other CHP officers were hit before the gunman was killed.

Police withheld the shooter's name and say they don't have a motive for the attack.

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8:37 p.m.

Police say a shootout near a freeway has killed a California Highway Patrol officer, wounded two others and left the gunman dead.

A shooter opened fire during Monday just off Interstate 215 in Riverside, east of Los Angeles.

Riverside police spokesman Ryan Railsback says a CHP officer had stopped a white pickup truck when the driver pulled a rifle.

Three officers were hit. The CHP tweeted that one officer died.

The gunman was pronounced dead at a hospital.

Railsback also says someone in another car was hit by glass that caused minor injuries.

Video from the scene shows bullet holes in the front windows of two patrol cars and large holes blown in their back windows. What appeared to be an assault-style rifle was on the ground.