A 19-year-old Manhattan resident was arrested for allegedly firing an air gun at a member of Mayor de Blasio's security detail on Sunday night. Prosecutors say that Michael Verbitsky confessed—but insisted that it was all an accident.

Police say that around 7:15 p.m. on August 24th, a police officer near Gracie Mansion was "struck in the back by an apparent BB/pellet," adding, "There have been two previous reports of apparent BB/ pellets causing damage to windows in this same area."

According to the Post, "Hearing a pop, the cops looked up, noticing a pair of moving curtains and a silhouette in an open window, the sources said," across the street at luxury condo 170 East End Avenue.

http://gothamist.com/2015/08/25/pellet_gun_oopsies.php