Gunman Kills NYPD Officer, Blackstone Executive and Security Guard in Manhattan High-Rise Shooting

A gunman stormed into a Manhattan high-rise building on Monday, killing four people including an off-duty NYPD officer, a Blackstone executive, and a security guard, in a shocking end to the business day. The shooting sent shockwaves through New York City, leaving authorities scrambling to respond to the crisis. Details about the shooter's identity and motive are still emerging.