Who Was the Falling Man from 9/11? – Falling Man Identity Revealed

Then he heard people gasping. People on the ground were gasping because people in the building were jumping. He started shooting pictures through a 200mm lens. He was standing between a cop and an emergency technician, and each time one of them cried, “There goes another,” his camera found a falling body and followed it down for a nine- or twelve-shot sequence. He shot ten or fifteen of them before he heard the rumbling of the South Tower and witnessed, through the winnowing exclusivity of his lens, its collapse.

https://www.esquire.com/news-politics/a48031/the-falling-man-tom-junod/