Two Catholic priests escorted and partially carried a dying man to the gallows at the Old Capital Prison in Washington, D.C. The condemned man was Heinrich Hartmann Wirz. Branded by his executioners as the “beast of Andersonville prison,” he was hanged on November 10, 1865. He had been found guilty of conspiring to murder Union prisoners and was executed as a war criminal, the only such casualty of the Civil War.
Blakey, Arch Fredric
"Military Duty in Antebellum Florida: The Experiences of John Henry Winder,"
Florida Historical Quarterly: Vol. 63:
2, Article 4.
Available at: https://stars.library.ucf.edu/fhq/vol63/iss2/4