Brandon Blackstock's cause of death has been confirmed. According to Silver Bow County Coroner Dan Hollis on Monday via a statement to People, the 48-year-old's manner of death was determined to be natural causes. The cause of death was confirmed, as reported last week, to be a form of skin cancer known as melanoma. The official noted: "Brandon Blackstock passed away peacefully at his home in Butte, Montana on August 7th under hospice care surrounded by his family." So sad. He was in hospice.