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,

Kelly Clarkson’s ex-husband, Brandon Blackstock, died from skin cancer three years after being diagnosed. Dan Hollis, the coroner for Silver Bow County in Montana, confirmed Blackstock had died from melanoma in a Monday statement to People magazine. The manner of death was natural causes.

The death of talent manager Brandon Blackstock, Kelly Clarkson's ex-husband, is shining a spotlight on melanoma, the type of skin cancer he had.