Three people were killed and nine others wounded when up to four gunmen opened fire inside a New York City restaurant in Brooklyn early Sunday following a dispute at the crowded venue.

Upon seeing the weapon, the off-duty officer quickly drew his own gun and fired multiple rounds at the suspect.

A club shooting in the New York City borough of Brooklyn early Sunday left three people dead and nine others wounded in a year of record low gun violence in the city. Investigators believe up to four ...