GATE CITY — A Scott County man is dead following a single-vehicle crash Tuesday, the Virginia State Police said. According to a news release from VSP Public Relations Director Corinne Geller, Trooper D.F. Rutherford is investigating the incident that occurred on Route 23 at mile marker 13. A 2008 Ford Ranger was southbound when it ran off the left side of the highway and over-corrected in the median, causing the vehicle to overturn. The driver, Gregory E.