Transcript for Cyclist Lance Armstrong: Bombshell Confession
Now, we turn to the giant interview everyone was talking about and debating today. Oprah winfrey and chan champion biker lance armstrong. More than three million people watched trying to gauge his confession, his remorse. Neal karlinsky studied armstrong's answers and we wondered, did he finally tell the truth? Reporter: If lance armstrong's goal in talking with oprah was a shot at redemption, he may have just taken a big step backwards. I view this situation as one big lie that I repeated a lot of times. Reporter: But investigators say, even now, he's still lying. One of the biggest, armstrong told oprah he stopped doping in 2005. You did not dblood transfusion in 2009? You did no doping or blood transfusions in 2010? Absolutely not. 2009 and 2010, those were the two years I did the tour. Absolutely not. Reporter: Yet today investigators tell abc news that armstrong's bloodwork from his 2009 tour de France shows clear blood manipulation consistent with banned transfusions. So why admit to some doping but not all? Investigators say it's to keep within the statute of limitations for armstrong's biggest fear, possible criminal charges. And even though he fessed up to cheating, when it came to the human part, metering people like betsy andreu for refusing to lie, and sabotaging her husband's cycling career, many saw a lack of compassion that seemed bizarre at best. Here's how he described his apology to andreu. I said, listen, I called you crazy, I called you a . I called you these things. But I never called you fat. Reporter: Are you satisfied by anything you heard? No, I'm not. I'm really disappointed. Here I am, I don't know if I'm stupid. Willing to give him a second chance. But I think he blew it. Reporter: Tonight armstrong's lawyers will be considering that too whether his words might come back to haunt him in court. We're joined now by neal karlinsky who has covered this story for so long. What are his teammates saying? We've heard from two former teammates. To be fair, they still have a lot of questions for lance armstrong. But they consider the fact that he's made an admission and some apologies, a huge first step. Because this is a guy who does not admit mistakes or apologize easily. So they've never heard him apologize before. N so it's at least something. We'll be watching again tonight
This transcript has been automatically generated and may not be 100% accurate.