Ukrainian Holocaust survivor Boris Romantschenko, 96, who lived through internment at the Buchenwald, Peenemünde, Dora and Bergen-Belsen concentration camps was killed in his home by Russian troops Friday, The Buchenwald and Mittelbau-Dora Memorials Foundation reports. The translation of the statement is spotty, but it seems that Romantschenko’s apartment building in Kharkiv was hit by a missile fired by Russian forces. Romantschenko was the Vice President of the International Committee Buchenwald-Dora and Commands for Ukraine and described as a passionate advocate for remembrance by the foundation. “The construction of a new world of peace and freedom is our ideal!” he declared at a gathering at the Buchenwald site in 2012.