The incident unfolded around 7 a.m. Monday near West Seventh and South San Jacinto streets, according to the Riverside County Sheriff's Department.
Multiple cars were struck by gunfire, as well as two people. One of the victims, identified as 42-year-old Victor Hugo Leon, died at the hospital.
The suspected shooter, 39-year-old Julio Cesar Rodarte, was arrested for murder and ten counts of attempted murder. His motive is not clear.