Authorities say the shooting occurred near Old Banning-Idyllwild Road at Shirleon Drive.
The blaze, which broke out Saturday night, has blacked 280 acres, according to the Riverside County Fire Department website. The fire has also destroyed two mobile homes and injured three people, including an inmate firefighter.
Several homes were threatened, but no evacuations have been issued.
The fire was 20 percent contained as of Sunday afternoon.