Lance Armstrong admits using performance-enhancing drugs

After years of tenacious spin that he was innocent, Lance Armstrong has backpedaled in a confessional interview with Oprah Winfrey. He admitted unequivocally to using performance-enhancing drugs in his seven Tour de France wins. But his critics say he is still spinning the story. Armstrong has, in the past, persistently and angrily denied those allegations -- even under oath. And he has persecuted former close associates who went public against him. "We sued so many people," Armstrong told Winfrey -- people who were telling the truth. Questions for Armstrong Did he use the blood-enhancing hormone EPO? Testosterone? Cortisone? Human growth hormone? Illegal blood transfusions and other blood doping? Armstrong answered "yes" on all counts in the first installment of a two-part interview that aired Thursday night. Part two airs Friday on Winfrey's OWN channel and online. The disgraced cyclist, who has been stripped of his Tour de France titles and an Olympic bronze medal, blamed no one but himself for his doping decisions, careful not to implicate others. Armstrong: I was 'a bully' Armstrong described himself as "deeply flawed" and "arrogant," and spoke often of how so much was his "fault." "I was a bully," he told Winfrey of how he treated others who might expose him. But Armstrong was not telling the whole story, author David Coyle, who wrote a book about doping and the Tour de France, told CNN's Anderson Cooper on Thursday night. "A partial confession is sort of the pattern here," he said. "Maybe this is Armstrong's partial, and more will come out later."