The official cause of death for Kelly Clarkson’s ex-husband Brandon Blackstock has been revealed. In initial reports regarding his death, it was revealed that Blackstock, who was married to the singer and daytime talk show host,

Brandon Blackstock, the talent manager and former husband of Kelly Clarkson, died of melanoma, a form of skin cancer, on Aug. 7. The Silver Bow County Coroner Dan Hollis tells PEOPLE Blackstock "passed away peacefully at his home in Butte,

Brandon Blackstock's official cause of death has come to light, days after the talent agent and ex-husband of Kelly Clarkson died of natural causes at age 48.