Leon Czolgosz, the assassin of U.S. President William McKinley, is executed at Auburn State Prison in Auburn, New York by means of the electric chair. Czolgosz had shot McKinley twice with a cheap revolver and the President had lingered for several days before dying. After Czolgosz is executed, he is buried on prison grounds and sulfuric acid is thrown into his coffin to disfigure his body and result in its quick decomposition.