Overview

• During Monday’s attack at 345 Park Avenue, a 27-year-old gunman opened fire in the lobby and on the 33rd floor before killing himself.
• A police officer and four civilians died and at least one person was critically wounded as the shooter moved from the lobby to upper floors.
• The 27-year-old Las Vegas resident had a documented history of mental health issues, though authorities have not determined a motive.
• NYPD officials say they found an M4 assault rifle, additional weapons, ammunition, magazines and the suspect’s prescription medications in his parked vehicle.
• The Midtown tower, home to major firms including Blackstone and the NFL, has become a focal point in renewed debates over U.S. gun regulation.