Lance Armstrong's former teammate, Tyler Hamilton, calls the cyclist's confession a "big first step" but says Armstrong must follow it up by telling authorities everything he knows about the doping programs he used to win his Tour de France titles.
Hamilton's testimony was key to the case against Armstrong. He described the doping program on Armstrong's team and the power Armstrong wielded in pressuring teammates to go along with the doping.
About 12 hours after watching Armstrong's interview with Oprah Winfrey, Hamilton told The Associated Press, "He's broken. He's broken," and insisted he'd never seen Armstrong act the way he acted in the interview.
Hamilton rode with Armstrong on the U.S. Postal Service team from 1998 to 2001.