The Russian supermodel who plunged to her death by leaping from a Manhattan office building in 2008 had joined a cult before her apparent suicide, according to a new book. In the book, Nothing Is True and Everything Is Possible, journalist Peter Pomerantsev investigates the death of 20-year-old Ruslana Korshunova and claims she was part of a cult known as "Rose of the World." The New York Daily News reports that Pomerantsev also joined the cult himself. His book apparently details the cult's "dehumanizing" training sessions in which life coaches humiliate trainees by criticizing their past troubles. The book alleges that Korshunova,...