Commie system at that time was to kill people they didn't know what to do with or send them to Siberia to work until death. The Soviet Union was redrawing borders and moving people on massive scale as well as installing commie leaders for the new satellites' government. There were a bunch of useful idiot commie jews from Russia that gladly took commie power positions granted by the new overlords of Soviet Russia just after the war, and after their usefulness as idiots was over, the commie Soviets got rid of them. More info https://english.radio.cz/documentary-show-post-war-mass-murder-german-civilians-prague-8574076 Site author indicates these murders were by the revolutionary guard with help of Soviets. See excerpt https://www.laits.utexas.edu/ee_jewish_history/feature/slansky Slansky came over from the Soviet Union and was installed in Czechoslavakia. He and other jews had top power positions in the communist party.