Chilling video shows teen thug waving gun moments before NYPD detective was shot in back
Chilling video footage captured the moment a deranged teenage gunman racks a round into the chamber of a 9mm handgun before running up to an NYPD vehicle and opening fire — leaving a veteran detective shot in the back.
The 18-year-old shooter is seen flashing the weapon as he walks back and forth on Nostrand Avenue in Crown Heights around 4:45 a.m. Sunday, just a half block from an unmarked police cruiser, surveillance video obtained by The Post shows.
The suspect, who has not been identified, walks back and forth along the sidewalk – at one point seen pulling back the slide of the pistol before dashing up the street to the unmarked police vehicle.
Alert cops, part of a sex-offender monitoring unit, saw the nut approaching with the semi-automatic weapon and jumped out – sparking a shootout.


