Here is the latest reporting on how the incident allegedly coccurred, as taken from the Warner plea
Another soldier, 1st Lt. Michael Behenna of Edmond, Okla., faces trial next week on a murder charge in the death of detainee Ali Mansour Mohammed in May 2008. Prosecutors say Behenna shot Mohammed, then used and incendiary grenade to burn the detainee's body. Warner admitted Wednesday to standing on the detainee's legs while he was defenseless during the assault then days later helping strip Mohammed naked and leaving him in the desert. Prosecutors say Behenna later shot the detainee.See report here.
The report notes there is a post trial motion pending regarding Brady material, or at least I'll call it that. We'll see what the judge says---post-trial Brady motions don't exactly make me excited unless the defendant's name is Ted Stevens.
H/T Ama Goste, Ama Goste Facebook page (?).