Marina Litvinenko is the widow of Alexander Litvinenko, a prominent opponent of Russian president Vladimir Putin, wo died in 2006 after being poisoned in London. After the death of her husband, Marina led a campaign for a full investigation into the assassination via the Litvinenko Justice Foundation. This led to a public inquiry that indicated there was a strong probability the FSB was responsible and it was probable Putin was aware of the operation. Marina continues to campaign for Russian dissidents.