http://nypost.com/2016/05/19/nypd-ch...-cops-bullets/
Four of the shots that cops fired at a madman waving a knife in Midtown failed to penetrate his jacket — which was not bullet-proof — and the NYPD will now check the weapons for malfunction, law enforcement sources told The Post.
Four of the bullets got lodged in Conrad’s Carhartt jacket, sources said, adding that he was not wearing bulletproof vest.