The shooter, identified as Shane Devon Tamura, of Las Vegas, by the New York Police Department, also died via a self-inflicted gunshot wound after opening fire with an M4 rifle. Tamura shot multiple people in the lobby before taking the elevator to the 33rd floor, where he shot himself in the chest, N.Y.C. Police Commissioner Jessica S. Tisch said.

An NYPD officer, a Blackstone executive, a Rudin Management associate and a security guard were killed in the shooting at Manhattan's 345 Park Avenue.