A retired NYPD cop shot and killed a man trying to rob him at gunpoint in Brooklyn early Tuesday, police said.
Police Commissioner Bill Bratton said the preliminary investigation shows the former officer was working as a security guard outside a waste recycling plant in East New York.
The ex-cop was in his own car when he was approached by two armed men, Bratton said.
A man who later viewed surveillance footage of the shooting told NBC 4 New York the suspects forced the victim out of the car and down on the ground.
"He was like, 'well just take the car,' because they pulled a gun on him," according to the man who saw the video.
The former cop was somehow able to get free and shot one of the suspects, an 18-year-old man. The other suspect fled, the witness said.
The NYPD said the ex-officer had a legal gun.
Police are still investigating.
--Marc Santia contributed to this story