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,

Kelly Clarkson wasn’t mentioned in an obituary for her late ex-husband, Brandon Blackstock, who passed away on August 7. The obituary reveals that Blackstock, 48, was surrounded by loved ones when he died at home, ending her 3-year battle with cancer, alongside a touching summary of his life and career. “To know Brandon was to …

Dan Hollis, a coroner in Silver Bow County, Montana, tells USA Today that Blackstock, 48, had melanoma, a cancer that originates in melanocytes, cells that give skin its color. Melanoma often is caused by exposure to the sun, but the exact cause isn’t clear, according to the Mayo Clinic.