One man made a huge difference in guiding people to safety in the South Tower on 9/11. When the tower was hit, people on the 78th floor sky lobby huddled with no escape as far as they could tell. A man with a red bandana covering his mouth and nose appeared from smoke and wreckage and spoke in a calm voice. He guided them to a stairway and led them to safety, making three trips to the sky lobby and saving as many people as he could until the building collapsed.
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Alison Crowther read an article about the man in the red bandana in The New York Times a few months after 9/11 and knew it was her son, 24-year-old Welles Crowther, who carried a red handkerchief with him since he was a boy. He was an equities trader and volunteer firefighter who risked his life to save others.
Image from the New York Times