On Apr. 12, a man in an orange construction vest, helmet and gas mask released two smoke grenades on the floor of a subway car approaching the 36th Street station in the Sunset Park neighborhood of Brooklyn, New York, firing 33 shots into the crowded train. 

10 people were hit in the gunfire, with five of the victims critically injured and none fatally shot. 13 others suffered injuries from smoke inhalation, falling or panic attacks. The shooting was named the worst in New York City subway history, according to police. 

On Tuesday afternoon, the New York Police Department identified Frank R. James as the “person of interest” in the shooting after finding a key to a U-Haul van in the train, along with a Glock 9-millimeter handgun, three ammunition magazines, a hatchet, fireworks and a liquid believed to be gasoline. 

The NYPD alleges that James rented the U-Haul van in Philadelphia and abandoned it about five blocks from the Kings Highway station, where James is believed to have boarded the subway, and five miles from where the shooting occurred. 

As of Tuesday evening, the suspected shooter remains at large, and an investigation into his location is underway.