Williamson Co. — One is dead after an accident involving a semi and a pedestrian in Williamson County early this morning. According to a release from the Illinois State Police the accident happened at around 1:00 on Old Illinois Route 13 just east of Route 148. Preliminary investigation states that the victim was walking in the middle of the roadway and wearing dark clothing, making them difficult to see. The driver struck the pedestrian, fatally injuring him. The name of the victim is being withheld until family members can be notified.