Interviewee was assigned to AG around the end of October 2003 on generated detail. Recounted an incident where he was escorting a detainee to the tier and the detainees were put into a pile on the floor. Then stated that [redacted] ran across the room and lunged in the air and landed in the middle where the detainees were (stated that he/she believed this occurred two times). The detainees made a sound, exhibiting that [redacted] hurt them or caused them pain when he would land on them. Interviewee also recounted that [redacted] stomped on the detainee's fingers/toes, this would cause the detainees to scream loudly. Recalled that the detainees were made to strip, while wearing sandbags over their heads. Upon undressing, [redacted] approached one detainee and hit him hard in the temple, with such force that the detainee fell unconscious. Interviewee walked over to the detainee to make sure he was still alive, interviewee stated that the detainee was still breathing. Interviewee then stated that [redacted] walked over to the pile of detainees and put his knee on them and took a photo. Finally, interviewee recounted that [redacted] punched a detainee with such force in the chest that the detainee could not breathe, a medic had to be called.