Shannon Millar American Gymnast..Shannon Lee Miller (born March 10, 1977 in Rolla, Missouri, United States) is an American lawyer and former artistic gymnast from Edmond, Oklahoma. She is the most decorated gymnast in U.S. History, and considered one of the greatest gymnasts the United States has ever produced. Miller was the 1993 and 1994 World All-Around Champion, the 1996 Olympics balance beam gold medalist, the 1995 Pan Am Games all-around champion, and a member of the gold medal-winning Magnificent 7 team at the Atlanta Olympics. The winner of a combined total of 16 World Championships and Olympic medals between 1991 and 1996, Miller ranks as the most decorated gymnast, male or female, in U.S. history. Miller was also the most successful American athlete, by medal count, at the 1992 Barcelona Games, winning 5 altogether..