Missing in Chile: What happened to Boris Weisfeiler? on April 11, 2016 The last time Olga Weisfeiler spoke to her brother Boris was in late 1984, just before he flew to Chile for a hiking holiday. “I need to get away from all this snow in Pennsylvania,” he told her. “I’m heading south. It’s summer down there.” Days later, Boris Weisfeiler was stepping out into the […]