Klaus Bonhoeffer, Rudiger Schliecher, Hans John, Friedich Justus Perels, Albrecht Haushofer and 11 other prisoners were told on 22 April  that they were to be moved from the prison in Lehrter Steeet to another building, where they were to be released. Instead, they were to be taken out that night behind Leheter Railway Station and murdered by machine pistol shots in the back. 

(Ferdinand SchlingensiepenDietrich Bonhoeffer 1906-1945: Martyr, Thinker, Man of Resistance, 374)