Reuters
Ten years ago today, Alexander Litvinenko died from radiation poisoning in a hospital bed in London. 
Litvinenko, a defector from the Russia’s intelligence service the FSB, was a prominent critic of Putin and the Kremlin.  
He died from ingesting a dose of the radioactive material polonium-210, which a British inquiry in 2016 found was most likely a political assassination approved by the head of the FSB and Russian President Vladimir Putin. 
Litvinenko’s death is one among a series of mysterious killings. Here are some of the other people Putin is suspected of assassinating:
The Washington …
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