He survived being interred at not one, but four World War II Nazi death camps. The 96-year-old Boris Romanchenko — who lived through the horrors of the likes of Dora-Mittelbau and Bergen-Belsen — was killed by a Russian missile strike on his flat in the war-ravaged Ukrainian city of Kharkiv on Friday. The news of his death was confirmed by the Buchenwald concentration camp memorial foundation on Monday after his granddaughter Yulia called the institution. “It is with horror that we report the violent death of Boris Romanchenko in the war in Ukraine,” the memorial for the Buchenwald survivors said...