It happened at about 3 pm on Monday at Garden Drive and 2nd Place in Home Garden just outside Hanford.
Deputies say they found evidence of the shooting but couldn't find a victim.
Minutes later, they learned a man in his mid-30s had been dropped off with a gunshot wound at a nearby hospital.
The victim's condition has not been released.
Detectives are still working to determine a motive for the shooting. No further information about the investigation was immediately available.