Former Butler basketball standout Joel Cornette died from coronary atherosclerosis, the Cook County Medical Examiner's Office told IndyStar on Thursday.
The condition slowly narrows and hardens arteries of the heart and is commonly called coronary artery disease. The manner of death was natural, the office said.
Coronary artery disease is the No. 1 killer of Americans, according to the American Heart Association. Most often, death occurs from heart attacks caused by sudden blood clots in the arteries. People with the disease "might not notice a problem until (they) have a significant blockage or a heart attack," according to the Mayo Clinic.