The German government expelled two Russian diplomats Wednesday after officials said they found "real indications" that authorities in Moscow were responsible for the killing of a Chechen exile several weeks ago. The expatriate, Zelimkhan Khangoshvili, was shot dead at point-blank range at a Berlin park on Aug. 23. A suspect, who entered the country using what was believed to be a phony Russian passport, was eventually captured. A joint investigation ...