A BBC investigation has uncovered new evidence that implicates two U.S. Marines in the killing of Iraqi civilians in Haditha two decades ago. The BBC reports statements and testimony given in the aftermath of the Haditha massacre raise doubts about the investigation into what happened November 19, 2005, when U.S. forces slaughtered 24 Iraqis, posing significant questions over how U.S. armed forces are held to account. Just one U.S. soldier was convicted of a crime over the massacre. Marine Staff Sergeant Frank Wuterich was found guilty of negligent dereliction of duty in 2012 and served no jail time.