Lawyer : UK government evidence from Russia tied to ex - CIA agent 's death . The counsel to the inquest , Hugh Davies , said evidence provided by the UK government `` does establish a prima facie case as to the culpability of the Russian state in the death of Alexander Litvinenko . '' Alexander Litvinenko worked for MI6 and Spanish intelligence services , widow 's lawyer says . Litvinenko died after being poisoned by radioactive material polonium-210 in 2006 . He on deathbed blamed Russia 's Vladimir Putin , but the Kremlin denied the accusations .
Lawyer : UK government evidence from Russia tied to ex - CIA agent 's death . Alexander Litvinenko worked for MI6 and Spanish intelligence services , widow 's lawyer says . Litvinenko died after being poisoned by radioactive material polonium-210 in 2006 . He on deathbed blamed Russia 's Vladimir Putin , but the Kremlin denied the accusations .