The victim was shot multiple times near a Shell gas station in the 9400 block of Washington Boulevard at about 8:56 p.m. Thursday, according to LASD.
The victim was taken to a hospital by Los Angeles County Fire Department paramedics, where he was pronounced dead.
LASD said it does not believe the victim was a customer at the gas station.
Authorities have not yet determined a motive for the shooting. A suspect description has not been released.
Anyone with information regarding the shooting was asked to call the LASD Homicide Bureau at 323-890-5500. Callers who wish to remain anonymous may call Crime Stoppers at 800-222-8477 or go to lacrimestoppers.org.
City News Service contributed to this report