MACON COUNTY, Ill. (WAND) - A driver who's car slammed into a concrete wall on Saturday has been identified. 

The woman was identified as Kathryn Miller, 23, of Jamestown Ohio. Miller died of massive heart and chest trauma, a release from the coroner's office said. 

The crash happened on Saturday morning around 9 a.m. at milepost 146 on Interstate 72. 

The driver was the only person in the car and the only vehicle involved. Miller was pronounced dead at the scene by the Macon County Coroner.Â