Off-duty cop kills robber

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An off-duty NYPD officer who was responding to a Craigslist ad for a car shot a man who allegedly tried to rob him.

It happened late Monday night in Springfield Gardens, Queens.

Police say two men arrived in a white BMW.  One of them pulled out a gun and attempted to rob the officer.

The officer pulled out his own gun and shot the armed man.  The second man drove off in the car and has not been arrested.

The suspect who was shot died at Jamaica Hospital.  Police say the gun he was using was an air gun , a CO2 powered pistol that shoots pellets but looks like a much more powerful handgun.