Kelly Clarkson abruptly cancelled her Las Vegas shows, announcing that her ex-husband, Brandon Blackstock, was ill. Then, came the tragic news that Blackstock was dead at the age of 48. What was his cause of death?

Many of Kelly Clarkson’s fans likely remember Brandon Blackstock for fighting with the American Idol alum over their Montana ranch during their divorce and, while the couple certainly went through some contentious times,

Brandon Blackstock dealt with a private health crisis for three years before he died on Thursday, Aug. 7. In announcing his death, a representative for the talent manager and his family revealed that Blackstock,