In the riot of papers and debris scattered by the first airplane strike, Sheehan spotted a single sheet that looked interesting. He picked it up. It was an itinerary for someone traveling to Los Angeles. The realization slammed into his mind. That had not been the crash of a little Cessna. “Oh, my God,” Sheehan said. “It was a commercial plane.” At that moment, he and the woman he had been helping heard the roar of yet another one.
