WWE legend Hulk Hogan had a history of atrial fibrillation and leukemia CLL, a type of cancer that affects white blood cells and bone marrow.

According to a report by Pinellas County Forensic Science Center in Florida, Hogan died from acute myocardial infarction, which is more commonly known as a heart attack. The cardiac arrest was deemed to have been the result of natural causes. The New York Post was first to report Hogan’s cause of death.