COLUMBIA, S.C. (WRDW/WAGT) - Friday will mark 25 years since a University of South Carolina graduate student disappeared without a trace. Shelton Sanders vanished on June 19, 2001, just months before graduation. His body has never been found, but his family says their search is far from over. Now, they’re increasing the reward to $150,000 in hopes someone finally comes forward. “Shelton is more than just a missing person,” said Wilveria Sanders, Shelton’s sister.