Russian President Vladimir Putin promised the mother of murdered opposition politician Boris Nemtsov on Feb. 28 that everything will be done to find and punish her son's killers, the Kremlin said.
Reuters: Putin tells Nemtsov’s mother her son’s killers will be punished
Russian President Vladimir Putin looks over after a wreath laying ceremony at the Tomb of the Unknown Soldier by the Kremlin wall to mark the Defender of the Fatherland Day in Moscow on Feb. 23, 2015.