Prosecutor Samantha Usher and U.S. Attorney Bryan Stirling talk to reporters outside the federal courthouse in Columbia, S.C., on Monday, Oct. 26, 2026. (Photo by Skylar Laird/SC Daily Gazette)COLUMBIA — A U.S. citizen who pleaded guilty to running an international healthcare scam, then fleeing to the Philippines for two years, will spend 20 years in prison, a federal judge decided Monday. Herb Kimble, 60, was the ringleader of the operation, wh…