From the Washington Post:
It began with a muted series of thumps from a sharp knife or maybe clenched fists. The sounds were muffled but unmistakable, one body blow after another, ending with a squishy thud.
“No, no, no, no, no. No,” came the high-pitched voice of a crew member or flight attendant being subdued. ” . . . Please, please don’t hurt me,” the person said later. ” . . . I don’t want to die.” The desperate plea, captured by the cockpit voice recorder of United Airlines Flight 93 on Sept. 11, 2001, was played to a transfixed jury yesterday at the death penalty trial of Zacarias Moussaoui.
Here.