More about the confession rocketing around the globe, lance armstrong finally talking to oprah winfrey about the use of illegal drugs. For 14 years, this has been armstrong's public face, steely and... See More
More about the confession rocketing around the globe, lance armstrong finally talking to oprah winfrey about the use of illegal drugs. For 14 years, this has been armstrong's public face, steely and defiant. But tonight, this is the new photo we are studying for clus. A man acknowledging that he did not tell the truth. So, how far will he go in that interview? Abc's nall careal karlinsky starts us off tonight. Reporter: Wearing a sports coat and looking calm, lance armstrong revised history, and admitted to oprah that he used performance enhancing drugs. I think the entire interview was difficult. I would say he did not come clean in the manner that i expected. Reporter: He's been accused of running up a doping bill investigators have pegged at more than $1 million. Investigators describe a ghoulish list of medical enhancements -- blood transfusions, up to twice a week during the tour, along with epo, testosterone, cortisone and an extract of calves blood called "actovegin." Ex-teammate floyd landis described in an abc news exclusive, a cloak and dagger strategy that even involved injecting drugs hidden in the team bus on the side of the road. And the blood would be taped on the wall or hung up at a certain level above your head so that gravity caused it to run in your veins and then you leave. Reporter: Landis was attacked by armstrong for his admission and he wasn't alone. Armstrong trashed anyone who accused him. Former friend, betsy andreu says she was in the hospital room when, during his fight against cancer, armstrong admitted performance enhancing drugs to his doctors. When she refused to lie about it, she says he lashed out, putting the brakes on her husband's career in cycling. It's bittersweet. There's been a lot of damage done to us, but at least the first step has been taken. Reporter: Those who know lance armstrong best say pictures of his face during competition tell you everything. Ferocious and focused. Someone who planned meticulously and executes based on his own instinct. And that hasn't changed. Lance armstrong may admit using drugs, but he also still sees himself as the champion. Confession or not to oprah, officials are not satisfied. And lance armstrong still faces a lifetime ban. Diane? A lifetime ban. What would it take to change that, neal? Reporter: Well, officials tell abc news that he is now in talks with them about coming forward, fully, confessing fully to officials, possiblich thing against others and if he does so, officials say, he could reduce that lifetime ban to eight years, which would put him back in competition rig the time he's about 49 or 50 years old. All right, neal karlinsky reporting in again tonight.
This transcript has been automatically generated and may not be 100% accurate.