Sheriff's deputies responded to a shots fired call just after 11:15 p.m. at a party in an apartment complex in the 4200 block of East 1st Street. The deputies found a man suffering from a single gunshot wound to his upper torso.
The unidentified victim was transported to a local hospital, but succumbed to his injuries shortly after.
The motive remains unknown. Investigators said they do not have a description of the shooter.
Anyone with information about the shooting was asked to contact the Los Angeles County Sheriff's Department's Homicide Bureau at (323) 890-5500.