Video: 'The HORRIFIC Burning Alive Of The Concentration Camp Prisoners'

(Friday, April 13, 1945 evening Central European Summer Time; part of The Holocaust during World War II) — German SS and Luftwaffe troops forced 1,016 slave laborers (who were part of a transport evacuated from the Mittelbau-Dora labor camp) into a large barn on the Isenschnibbe estate near the northern German town of Gardelegen, which was then lit on fire.

Video: 'WW2 Gardelegen Massacre: Murder Inc., Gardelegen, Germany, 4/17/1945 (full)'

Most of the prisoners were burned alive; some were shot trying to escape.

Video: 'Once upon a tragic time...'

The crime was discovered two days later by F Company, 2nd Battalion, 405th Regiment, U.S. 102nd Infantry Division, when the U.S. Army occupied the area.

Video: 'Witness to Concentration Camp Atrocity - Gardelegen | WW2 US Army Veteran Interview'

Video: 'Memory of the Camps (full documentary) | FRONTLINE' (Gardelegen at 52:51)