Brandon Blackstock’s final days were marked by a brutal fight against cancer, and now his death certificate lays bare the exact toll that battle took.

The 48-year-old former talent manager, ex-husband of Kelly Clarkson, and Montana rancher died at 11:13 a.m. on August 7 at his home in Butte, Montana. The official cause was malignant melanoma, an aggressive form of skin cancer he had been battling for three years. But the document reveals another devastating detail. Seizures were listed as a significant contributing factor to his death. While the cancer was the root, the seizures were part of the storm that ultimately claimed his life.

Filed by the Butte-Silver Bow County Clerk and Recorder’s office on August 14, the death certificate confirms there was no autopsy. Blackstock’s body was cremated, and his occupation was officially recorded as “rodeo producer” in the rodeo industry, a fitting final line in the life of a man who left the music business to embrace the cowboy way.

His family’s statement on the day of his passing summed up the loss. “Brandon bravely battled cancer for more than three years. He passed away peacefully and was surrounded by family. We thank you for your thoughts and prayers and ask everyone to respect the family’s privacy during this very difficult time.”

Blackstock’s marriage to Clarkson lasted from 2013 to 2020, ending in a highly publicized and bitter divorce that was not finalized until 2022. The couple shared two children, River Rose, 11, and Remington, 9. After their split, sources say Blackstock’s cancer diagnosis came swiftly, and he relocated to Montana, far from the Nashville and Los Angeles spotlight, to build a new life and focus on his health.

Those close to Clarkson have said she has been devastated for her kids. One insider noted that, regardless of their difficult history, she shielded her children from negativity and stayed protective of Blackstock as his health declined. “Kelly and Brandon had their ups and downs, but at the end of the day, he was the father of her children and she is absolutely heartbroken for them,” a source shared.

In the years following his music industry career, Blackstock traded red carpets for rodeo arenas. His obituary painted a portrait of a man deeply invested in his new world, building Headwaters Livestock Auction and his pride and joy, The Valley View Rodeo in Bozeman. But more than his business ventures or his music connections, the obituary made one thing clear. Nothing mattered more to him than his four children.

It described him as “a devoted father” whose star “never shone brighter” than when he was with his kids, Savannah, 23, and Seth, 18, from his marriage to Melissa Ashworth, along with River and Remy from his marriage to Clarkson. In recent years, he also embraced his role as “Pa” to grandchildren Lake and Julie, with another, LouCasey, on the way.

Blackstock’s life was one of sharp turns, from the high-stakes country music industry to the quiet, hard work of ranching and rodeo. His death certificate may read like a clinical record, but the story behind it is one of grit, reinvention, and a man who fought until the end.

In the end, Brandon Blackstock’s legacy is not just in the songs, deals, or shows he helped create. It is in the family he fiercely loved, the Montana dirt he worked, and the cowboy life he chased until his final breath.