The site of the shooting, 345 Park Avenue, is an office building that houses consulting firm KPMG, investment firm Blackstone, and corporate offices for the NFL. It's in Midtown Manhattan—designated a gun-free zone several years ago, which clearly has not worked.

A tragic scene unfolded in Midtown Manhattan on Monday (July 28) when a gunman opened fire at a Park Avenue office building, leaving four people dead. It has now been learned that among the deceased was Blackstone executive,