Officer Didarul Islam, 36, who was guarding the building on a paid security job when he was killed, had served as a police officer in New York City for over three years. He was an immigrant from Bangladesh and was working a department-approved building security job when he was shot.

An attorney for the man who sold a rifle used in the Monday mass shooting in New York City said the sale of the firearm to the gunman was done in compliance with state and federal law.