Abstract: Employee #1, a concrete laborer, was assigned to be a core catcher in the 48th floor elevator machine room, while four coworkers cut openings in the concrete roof of the room. A core catcher's duty is to prevent other coworkers from accessing the area below the concrete cutting. Employee #1 left the machine room and climbed down the ladder to the 47th floor. When a coworker above lost electrical power to his drill, Employee #1 walked into the elevator core, where coworkers from another company were constructing concrete forms for a pour. The lead coworker from the other company, not recognizing Employee #1, yelled at him to get his attention. Employee #1 left the elevator core and went to the ladder leading to the 46th floor, while the lead coworker followed him down the ladder. The coworker lost sight of Employee #1 as he reached the bottom of the ladder. Employee #1 was not seen after this incident until he was found approximately 25 minutes later, unconscious and face down, on a safety deck inside an elevator shaft on the 44th floor. Employee #1 had sustained multiple fractures from the fall. He was transported to a local hospital, where he was pronounced dead.