Who was hated by Americans for killing prisoners of war?

Lieutenant William Calley became widely hated by many Americans for his role in the My Lai Massacre during the Vietnam War, where he and his troops killed hundreds of unarmed Vietnamese civilians, including prisoners of war. His actions sparked outrage and condemnation, particularly after his trial and conviction in 1971 for murder, which many viewed as a symbol of the moral failures of the war. The incident highlighted the deep divisions in American society regarding the Vietnam War and its conduct.