The Sioux County Sheriff has identified the victim who was found dead in a burned car in a cornfield Friday night near Ireton.
Investigators say 78-year old Rudolph Martinez of Hawarden most likely suffered a medical condition which caused him to leave the roadway.
His vehicle then came to a stop in a chopped cornfield.
The field, and ultimately the vehicle, started on fire with the victim inside.
The Sioux County Sheriff says foul play is not suspected.