Autopsy performed on Morgan County crash victim

An autopsy will be performed Thursday on a man killed after a car crash just west of Jacksonville.

Preliminary autopsy results indicate an Arenzville, Ill. man involved in a car crash just west of Jacksonville died of natural causes.

Morgan County Coroner Jeff Lair said Curtis Blair, 51, hit a guard rail and ran off the road at the interchange of U.S. 67 and IL 104 Wednesday around 3 p.m.

An autopsy was performed on Thursday.