Shots rung out around 11:40 p.m. Thursday in the 900 block of Vista Avenue, according to Placentia Police Sgt. Adam Gloe.
Arriving officers found the man in his 30s lying in the street, unconscious and suffering from gunshot wounds, Gloe said.
Paramedics from the Anaheim Fire and Rescue Department, as well as the Orange County Fire Authority, attempted life-saving measures at the scene but the victim was pronounced dead, he said.
No further details were available.
—City News Service