In a strange twist Wednesday, the Investigative Committee suddenly
The surprise finding runs counter to that of British authorities, who have long accused former KGB bodyguard Andrei Lugovoi of being the assassin who killed Litvinenko and sickened businessman Dmitry Kovtun during a meeting in a London hotel in November 2006.
The announcement also is at odds with Lugovoi's repeated statements in the days and months after Litvinenko's death that several medical checks had cleared him of radiation poisoning.
But the Investigative Committee said it had found otherwise.
"Andrei Lugovoi was poisoned with Polonium-210 while meeting Alexander Litvinenko in London," committee spokesman Vladimir Markin said. "Lugovoi has been acknowledged a victim in the criminal case."
Litvinenko, a former FSB agent-turned-Kremlin critic, was sickened after drinking polonium-laced tea and died four days later.
On his deathbed Litvinenko said Vladimir Putin had ordered his death, and British investigators have long eyed Russia's secret service as having a hand in the Cold War-style killing.
But Russian investigators say they now have lumped Litvinenko's murder into one case together with the attempted murder of Kovtun and Lugovoi, with an unknown perpetrator still at large.
Lugovoi on Wednesday appeared to reverse his earlier insistence that he had not suffered radiation poisoning.
"I am satisfied with this decision because for five years I have been saying that I am a victim, both physically and from a moral point of view," Lugovoi told RIA-Novosti.
Kovtun, who was hospitalized for treatment in 2006, agreed, telling Ekho Moskvy radio: "Of course, that's how it is. We said this back in 2006."
British demands that Lugovoi — who currently serves in the State Duma as a member of the Liberal Democrat Party — be extradited to face trial in London have caused considerable diplomatic strain between the two countries.
Why such a surprising revelation would only be made public now — five years after the fact — is unclear, but some observers suspect a possible political component, as Lugovoi faces re-election on Sunday.
Alexei Mukhin, an analyst with the Center for Political Information, said the findings were likely part of "a thoroughly planned PR campaign" to benefit Lugovoi politically, RIA-Novosti reported.