In June 2001, Cooper would make a prediction that would earn him the legacy as the man who predicted the 9/11 terrorist attacks.

Cooper pulled on historical threads of tragic events and tied them to what he saw as the government and media colluding to make a boogeyman out of Osama bin Laden. Cooper predicted an awful event would soon occur in the United States and that the country’s leaders would blame it on bin Laden.

On Sept. 11, 2001, the day his prophecy was realized, Cooper stayed on air for 10 hours. According to audio archived on the Cooper tribute website, BeholdAMessenger, in the initial hours after the attack, Cooper theorized the towers of the World Trade Center came down by controlled demolition.