In the courtroom of the military commission, the CIA officer was referred to only by three-digit code NZ7, or simply as "the Preacher" -- a nickname he was given because of his peculiar way of terrorising detainees.
According to James Mitchell, a psychologist on contract to the CIA who helped draft and apply their "enhanced interrogation techniques", the Preacher "would at random times put one hand on the forehead of a detainee, raise the other high in the air, and in a deep Southern drawl say things like, 'Can you feel it, son? Can you feel the spirit moving down my arm, into your body?'"
Mitchell gave that chilling description in his memoir, Enhanced Interrogation, and on the witness stand on Thursday, he confirmed the Preacher's role at the CIA black sites. He was giving evidence at a pre-trial hearing in the case against five defendants charged for the 9/11 al-Qaida attacks, including the self-styled mastermind, Khalid Sheikh Mohammed.
Chilling role of 'the Preacher' confirmed at CIA waterboarding hearing in Guantánamo