Kelly Clarkson is grappling with guilt after her ex-husband's death. Earlier this month, the American Idol alum's ex-husband Brandon Blackstock tragically died at just 48 years old. We only learned after his passing that he'd been in a secret three-year battle with cancer. And Kelly apparently feels his suffering may have been aggravated by their messy divorce. As you may recall, the singer filed in 2020 after seven years of marriage. Brandon had served as her talent manager, and Kelly accused him of shady business doings...