Alexander Litvinenko's son wants truth about father's murder
On Thursday, the long-awaited final report of the public inquiry into the death of the former Russian spy Alexander Litvinenko, will be published.
Mr Litvinenko died in London in 2006, poisoned by tea which was laced with the radioactive substance polonium-210.
In his first television interview, his son Anatoly has told the BBC he wants to know who gave the order to kill his father.
He and his mother Marina spoke to the BBC's Gordon Corera.
20 Jan 2016