In this Friday, May 10, 2002, file photo, Alexander Litvinenko, former KGB spy and author of the book "Blowing Up Russia: Terror From Within" is photographed at his home in London. A prime suspect in the killing of Alexander Litvinenko says he won't testify as planned at an inquiry into the former Russian spy's death, leading the judge in charge to accuse him of trying to manipulate proceedings. (AP Photo/Alistair Fuller, File)