The shooting happened in the 13200 block of Rosecrans Avenue around 6:18 p.m.
Police say the suspect exited a white van, walked up to the victim, and shot him multiple times. The suspect then jumped back in the van and fled south on Claressa Street.
The victim was pronounced dead at the scene.
Investigators say the man is a known gang member but not from the local area.
The investigation is ongoing. Anyone with information about this incident was urged to contact the Los Angeles County Sheriff's Department's Homicide Bureau at (323) 890-5500.