Doctors at the Charité hospital in Berlin say it's "highly plausible" Pyotr Verzilov of the Russian protest band Pussy Riot was poisoned last week, although it's unclear with what or by whom. Verzilov is currently being treated in Berlin. "We have no indication — and this is important — that this was an infection or metabolic disease," the hospital's CEO, Dr. Karl Max Einhaeupl, told reporters at a news conference in Berlin. But "we cannot say anything about the question of how this toxin got into the body. It's not for us to answer this question."