The family did not say how or where Keough, 27, died.
“She is completely heartbroken, inconsolable and beyond devastated but trying to stay strong for her 11-year-old twins and her oldest daughter, Riley,” the representative said. “She adored that boy. He was the love of her life.”
TMZ first reported his death.
Lisa Marie Presley, 52, is the only child of the legendary singer and actor, who died in 1977 at age 42.
Tim Stelloh is a reporter for NBC News, based in California.
Diana Dasrath is entertainment producer and senior reporter for NBC News covering all platforms.
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