Officers responded to a report of a shooting in the 1600 block of Adelaide Street at about 8:55 p.m., according to police.
When officers arrived, they found a man lying on the road, suffering from at least one gunshot wound, police said.
The man was pronounced dead at the scene.
Police said it is unknown what led to the shooting, which remains under investigation.
Anyone with information is asked to call Concord police Detective James Nakayama at (925) 671-3478 or anonymously at (925) 603-5836.
