My Lai Massacre and the Death of William L. Calley Jr.

William L. Calley Jr., the Army lieutenant who led U.S. soldiers in the My Lai massacre during the Vietnam War, has passed away at the age of 80. The massacre involved the killing of hundreds of Vietnamese civilians, mostly women, children, and elderly men. Calley was convicted in 1971 but served only three days in prison due to a presidential order.