NCIS Special Agent follows up on a previous email from the Division Chief of the Personal Crimes Department at NCIS, who had requested information regarding a detainee death of which he was previously unaware. The original email provides a summary of an incident in which a detainee "died of unknown causes 36 hours after he was apprehended." He is suspected of dying "from head injuries suffered during one of over 20 escape attempts, including one in which he escaped from his restraints and threw himself through a 1/2 story window, landing on his head." Immediately after the fall, he checked out OK by a medical officer, but "a few hours later he took a turn for the worse and died with a Corpsman present." There were no allegations of abuse.