LONDON (AP) -- A lawyer for the widow of ex-KGB agent Alexander Litvinenko says Russian authorities have tried to obstruct an inquiry into his death "from beginning to end."
Ben Emmerson says Moscow has attempted "to frustrate and manipulate" the investigation into the death of the Russian agent-turned-Kremlin critic.
Litvinenko died in 2006 after drinking tea laced with radioactive polonium-210 at a London hotel. On his deathbed, he blamed Russian President Vladimir Putin -- a claim Moscow denies.
British police have accused two Russians, Dmitry Kovtun and Andrei Lugovoi, of the killing. Both deny involvement, and Moscow refuses to extradite them.
On the inquiry's final day Friday, Emmerson said the evidence "proved the case against them beyond reasonable doubt," and proved they were directed by Kremlin elements answering to "morally deranged authoritarian" Putin.