Chilling video shows teen thug waving gun moments before shooting NYPD detective 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.
Black News 
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.
