LEXINGTON, S.C. (WIS) – A Lexington man was killed during a motorcycle accident on Interstate-20 Friday night, according to Lexington County Coroner Margaret Fisher. Patrick Riley Prewitt, 21, was traveling westbound on I-20 in the Columbia area of Lexington County shortly before 10:30 p.m. Friday night. According to Fisher, Prewitt went off the side of the highway and collided with a guard rail.