Five months, eight prominent Russians dead - CNN.com
1: Denis Voronenkov, 45, was gunned down Thursday outside a hotel in Kiev. Voronenkov and his wife both spoke out against Putin after they left Russia for Ukraine in October.
2: Vitaly Churkin, 64, Russia's ambassador to the United Nations, died on February 20 of an apparent heart attack. He was "in his office fulfilling his duties" when he died, according to a statement from the Russian mission at the UN.
3: Alexander Kadakin, 67, the Russian ambassador to India, died on January 26.
A spokeswoman for the Russian embassy in New Delhi said that Kadakin died after a short illness and that there was nothing "special or extraordinary" about the circumstances that led to his death.
4: Andrey Malanin, a senior diplomat at the Russian embassy in Greece, was found dead in early January.
Malanin, 54, was the head of the Russian embassy's consular section in Athens. Police sources told CNN that worried colleagues called authorities after Malanin didn't show up to work for a few days. Police entered his apartment on January 9th and found him dead on his bedroom floor.
5: Oleg Erovinkin, who had close ties to Russian intelligence, was found dead on December 26 sitting in his car on the streets of Moscow. Russian news outlets reported that he was 61 years old. Russian government agencies have not released an official cause of death.
6: Russian ambassador to Turkey, Andrey Karlov, 62, was assassinated in Ankara on December 20. He was shot at point-blank range by a gunman while speaking at an art exhibition. The shooter, who was a Turkish police officer, shouted "do not forget Syria" during the assassination.
7: The same day as Karlov's killing, Petr Polshikov, 56, a senior Russian diplomat, was shot to death in his Moscow home, according to Moscow newspaper Moskovskij Komsomolets. The paper said Polshikov's wife found him in their bedroom with a pillow over his head. Underneath the pillow, police found Polshikov with a head wound.
8: On the morning of the U.S. election, November 8, about an hour after the first polls opened in New York City, police received a 911 call about an unconscious man inside the Russian consulate. When they arrived, they found Sergei Krivov, 63, unresponsive. Emergency responders declared him dead at the scene.