A staff restaurant costco poway pharmacy phone number Litvinenko, a former KGB officer who had been granted British citizenship after fleeing Russia, died in November 2006 after being poisoned by radioactive polonium, allegedly administered in a cup of tea during a meeting with two Russians, Andrei Lugovoi and Dmitry Kovtun. His widow's legal team have told the coroner that he was a paid MI6 agent at the time.