Poisoning of Alexander Litvinenko

Alexander Litvinenko was a former officer of the Russian Federal Security Service (FSB) and KGB. After speaking critically about what he saw as corruption within the Russian government, he fled retribution to the UK, where he remained a vocal critic of the Russian state. Six years after fleeing, he was poisoned by two Russians in a suspected assassination.

• http://en.wikipedia.org/wiki/Poisoning of Alexander Litvinenko