Summary of AR 15-6 investigation into death of detainee who was picked up in a cafe on 12/22/2003 and appeared to be mentally challenged. Detainee was held at 2-3 FA Detention Center for about 3 days, and then transported to 501 FSB Detention Center on 12/25/2003. Upon arrival, the Aide Station found that detainee had "low body temperature, shallow respiration, weak cardio rhythms"; he exhibited "little response to stimuli" and was "making moaning sounds." On 12/26/2003 he was airlifted to 28th CSH (hospital) where he received further treatment, but died due to total cardio failure. Investigation found "no evidence of misconduct or maltreatment." The narrative of events states that, prior to being "moved to the BSA on 25 December at 1800", detainee underwent a medical screening along with other detainees "to ensure all detainees were in good health." However, by about 2200 on 12/25/2003 the Battalion TOC was notified that the detainee was sent to the 28th CSH for medical treatment "and that his prognosis was not good." Commander's judgment of cause of death was "a pre-existing condition that could not be detected by medical personnel on site."