MOSCOW, Oct. 2 (UPI) -- Russian forensic experts say they lack evidence linking Andrei Lugovoi to the fatal poisoning of former KGB officer Alexander Litvinenko.

CANNES, France, May 23 (UPI) -- A documentary about Alexander Litvinenko, the Russian spy who was poisoned in London, is set to premiere at the Cannes Film Festival.

MOSCOW, April 11 (UPI) -- A piece of pulp fiction inspired by the killing of former intelligence agent Alexander Litvinenko is on the book shelves in Russia.

MOSCOW, Feb. 8 (UPI) -- Former Russian spy Alexander Litvinenko, who died after being poisoned, has been branded a traitor by his former chief.

LONDON, Jan. 20 (UPI) -- London police say they used security video from Heathrow Airport to identify a man they believe poisoned former KGB agent Alexander Litvinenko.

LONDON, Jan. 16 (UPI) -- Scotland Yard detectives investigating the radiation poisoning death of former Russian spy Alexander Litvinenko have requested a second visit to Moscow.

MOSCOW, Jan. 14 (UPI) -- Russian investigators are preparing to travel to Britain to investigate the killing of Alexander Litvinenko, a former Federal Security Service agent.

NAPLES, Italy, Dec. 26 (UPI) -- An Italian security expert who was with former Russian spy Alexander Litvinenko the day he was poisoned has been arrested in Naples on arms smuggling charges.

MOSCOW, Dec. 19 (UPI) -- A Moscow business associate of poisoned former Russian spy Alexander Litvinenko said Tuesday the defector had serious money problems in London.

MOSCOW, Dec. 11 (UPI) -- Criminal investigators in Moscow were planning a trip to London Monday to look into the radioactive poisoning of former spy and defector, Alexander Litvinenko.

MOSCOW, Dec. 7 (UPI) -- A witness in the case of poisoned Russian spy Alexander Litvinenko fell into a coma in Moscow with similar symptoms Thursday, a report said.

LONDON, Nov. 30 (UPI) -- British investigators looking into the death of ex-Russian agent Alexander Litvinenko reportedly have information of a secret squad that targeted the ex-spy. Alexander Goldfarb, a friend of Litvinenko, said he handed Scotland Yard copies of two letters pu

LONDON, Nov. 23 (UPI) -- Alexander Litvinenko, the former Russian spy who defected to Britain, died late Thursday in a London hospital, three weeks after his alleged poisoning.

MOSCOW, June 25 (UPI) -- A former Russian secret service officer turned whistleblower was tried in absentia by a Russian court on Tuesday and convicted of abuse of office and stealing explosives. The court gave Alexander Litvinenko a 3 1/2 year suspended jail sentence in a trial