At the time DoD denied Begg's account and, despite military coroner's having ruled the deaths as homicides, military spokesmen at that time attributed the deaths to natural causes. However a Department of Defense investigation, whose results were reported in May 2005, concluded that the deaths of Dilawar and Habibullah were wholly due to mistreatment by American soldiers. Begg wrote after his release that, he believed, one of the reasons he had continued to be detained was because he had been a witness to the two killings.