Brandon Blackstock's death certificate has been issued after he died on Aug. 7 at his home in Butte, Montana. The talent manager and former husband of Kelly Clarkson died of malignant melanoma, a form of skin cancer,

On Aug. 7 Brandon Blackstock, a talent manager and the ex-husband of Kelly Clarkson, died at the age of 48. His death was listed as natural and caused by melanoma, a type of skin cancer that begins in the melanocytes,