A 72 year old St. Charles, Missouri man was killed in a one vehicle accident on Wednesday in Effingham County. Illinois State Police reports say the accident occurred at 10:50 Wednesday morning on Interstate 70 east bound, about 1 mile west of Effingham. Reports say that 72 year old George William Stillman was traveling westbound on I-70 when for, unknown reasons, he entered the median and then turned around at the median turn-around. Stillman then started traveling eastbound on I-70 where he lost control of his vehicle and entered the ditch on the south side of the interstate. Stillman overturned multiple times and was ejected from the vehicle. Stillman was pronounced dead at the scene by the Effingham County Coroner.