Answer by taking a quote from the following article:

Terry Wayne Fator was born June 10, 1965, in Dallas, Texas, the son of Jephtha Wesley and Edith Marie Clifton, later known as Marie Sligh. He has an older brother, Jephtha Jr., and a younger sister, Deborah. Fator's second cousin is Chris Sligh, an American Idol season six finalist. Terry Fator says in his audio commentary of Terry Fator: Live from Las Vegas (2009) that he went to college at Liberty University in Lynchburg, Virginia.

Before appearing on America's Got Talent, Fator had almost given up on achieving success in show business as a ventriloquist. "It wasn't easy trying to keep going all these years, and by the time I was in my late 30s, I wasn't sure it was ever going to happen," says Fator.  On June 19, 2007, Fator made his first national appearance on America's Got Talent. Speaking on the experience, he said, "Not in my wildest dreams did I imagine I would win that show ... Essentially I auditioned because the guy that was the ventriloquist the first season got on Late Show with David Letterman... So I figured I'd do three episodes like he did and end up on 'David Letterman'." After winning the show, Fator actually had to turn the Letterman gig down fourteen times before his schedule was clear so he could appear. "My schedule got so packed, and it broke my heart every time I had to turn him down," Fator says.  When Fator first came onstage, judge David Hasselhoff said, "Oh, no, a ventriloquist." "I was thinking, there's no way I would win," Fator says. "I gave myself zero percent [chance]." The judges, Piers Morgan, Sharon Osbourne and David Hasselhoff loved Fator and he won the competition. Judge Piers Morgan told Fator "You're a great impersonator, a great singer and a great comedian." "You put a twist on the whole being a ventriloquist thing," added Judge Sharon Osbourne. Even Simon Cowell approved. "Simon Cowell said I was one of the top two entertainers on the planet," says Fator. "And getting a compliment from Simon Cowell, well, not many people get a compliment like that."

what did he do with the letterman gige?