A security guard opened fire on three men, killing one of them after they apparently tried to break into his car in Lynwood on Friday morning, authorities said.
The off-duty security guard was asleep in a vehicle parked in the 10900 block of Long Beach Boulevard when a truck and a sedan pulled up next to him around 4:30 a.m., according to Lt. Scott Hoglund of the Los Angeles County Sheriff's Department.
Two of the men exited their vehicles, checked the door of the guard's car and tried to get inside, Hoglund said. He described the car as having "extremely tinted" windows, and it was unclear if they knew anyone was in it at the time.
The security guard awoke to the men trying to break in, got his weapon out and shot all three, according to the lieutenant.
One of the men died at the scene, while the other two were transported to an area hospital in unknown condition. None of the men have been identified.
After the shooting, the security guard went to another location where he immediately called 911 to report the incident, Hoglund said.
The security guard was detained for questioning, and a firearm was recovered at the scene.
Authorities are investigating whether the three men may have been trying to steal or burglarize the car.
A second scene at 108th Street an Avalon Boulevard in the Green Meadows area of South L.A. is tied to the Lynwood shooting, according to Lt. Gomez, who did not have additional information about the related incident.
No further details were immediately released.
Anyone with information is asked to call the department's Homicide Bureau at 323-890-5500, or to leave a tip anonymously at 800-222-8477.
KTLA's Jennifer Thang and Nancy Fontan contributed to this story.