More details about pro wrestling icon Hulk Hogan's death have been revealed, including his cause of death and a private battle with cancer. He died last week at age 71.

The 71-year-old’s death was listed in a cremation approval form as the consequence of him having a heart condition known as atrial fibrillation, which causes an irregular heartbeat, according to the record shared with HuffPost by the Pinellas County Forensic Science Center.