A lone gunman carrying an assault-style rifle opened fire at an office building in midtown Manhattan on Monday evening, killing at least 4 people, including a police officer. The building, 345 Park Avenue, contains offices belonging to the National Football League, Blackstone, KPMG, and Bristol Myers Squibb, among others. The suspected gunman, identified as 27-year-old Las Vegas resident Shane Tamura, was found dead from a self-inflicted gunshot wound. Below are the latest developments.
This breaking news post has been updated.
