Officers responded to a shooting at 3740 Laguna Ave. at about 11:30 p.m.
Arriving officers found Michael Porcella unconscious and suffering from a gunshot wound, police spokesman Jeff Thomason said. He was pronounced dead at the scene.
Officers subsequently arrested Rennie Pratt, 28, of Oakland, in connection with the shooting.
Police are encouraging anyone with information to contact the homicide section at (510) 238-3821.