A woman places a candle to commemorate the victims of a fatal attack on a college in the Crimean port city of Kerch, at a memorial by the Kremlin walls in Moscow, Russia October 17, 2018. REUTERS/Sergei Karpukhin
A woman places a candle to commemorate the victims of a fatal attack on a college in the Crimean port city of Kerch, at a memorial by the Kremlin walls in Moscow