One person was killed and another seriously injured in an early morning accident near Vandalia. According to the Illinois State Police, 23-year-old Billy Joe Tate Jr., of Shobonier was traveling northeast on Fayette County Road 1150 on a CanAm four-wheeler when the vehicle left the roadway, overturned, and pinned Tate and his passenger, 19-year-old Macye Sarchet, of Vandalia to a tree. Tate was not breathing and was unresponsive. Witnesses called 911 and begin CPR. Tate was transported to Fayette County Hospital where he was pronounced dead. Sarchet was airlifted to Barnes Jewish Hospital in St. Louis. The accident remains under investigation.