On Dec. 1, 1934, a killing took place that would set the stage for one of the blackest chapters in Soviet history.
Radio Free Europe/Radio Liberty: Nemtsov. Kremlin-watchers find eerie parallel in an 80-year-old murder
Opposition leader Boris Nemtsov (C, killed on Feb.27 walks together with protesters carrying Ukrainian and Russian flags in Moscow, on March 15, 2014, during a rally against recent Russia's move on Crimea.
