Slash's Late Stepdaughter Lucy-Bleu Knight's Cause of Death Revealed After She Died at Age 25

Mar. 15, 2025

Lucy-Bleu Knight’scause of death has been revealed.

Per theCenter for Disease Control, “inhalation of high concentrations” of the “highly toxic, colorless gas” can cause “rapid unconsciousness and death.”

On July 21, theGuns N’ Rosesguitarist, 59,revealed on Instagramthat Knight, died “peacefully” at 25 years old in Los Angeles on July 19, calling her an “incredibly talented artist, a passionate dreamer and a charming, lovable, sweet soul.” On Instagram, he asked “for privacy” and that “social media speculation be kept to a minimum as they grieve and process this devastating loss.”

On July 21, two days after Knight’s death, a seemingly scheduled post was shared to her Instagram page, which featured a selfie and a caption reflecting on her relationships with people in her life.

Lucy-Bleu Knight, Slash.Slash/Instagram; Scott Dudelson/Getty Images

Slash of Guns N' Roses performs onstage in support of his new album “Orgy of the Damned” at Amoeba Music on May 29, 2024

Slash/Instagram; Scott Dudelson/Getty Images

Per the “Beautiful Dangerous” musician’s Instagram post, Knight, born on Dec. 6, 1998, was the “beloved daughter of Meegan Hodges and Mark Knight, stepdaughter of Samantha Somers Knight and Slash, sister of Scarlet Knight, stepsister of London and Cash Hudson.”

On July 28, Slash shared anotherheartfelt postabout his late stepdaughteron Instagram.

Lucy Bleu Knight.Marc Patrick/BFA.com/Shutterstock

Lucy Bleu Knight Jesse Jo Hosts Private Dinner Party to Celebrate Launch of her Sugar Jones Collection for Chrome Hearts, Chrome Hearts, Los Angeles, CA, California, United States

Marc Patrick/BFA.com/Shutterstock

“My heart is permenantly [sic] fractured,” he wrote alongside a photo of Knight. “I will never ever stop missing you & remembering what a beacon of happiness, laughter, creativity & beauty you have always been. & still are.”

Lucy-Bleu Knight.Lucy-Bleu Knight Instagram

Lucy-Bleu Knight

Lucy-Bleu Knight Instagram

Slash added: “The brightest light in the lives of so many that loved you so much. I find solace in the hope that you are at peace now. I will love you eternally.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer​​, from celebrity news to compelling human interest stories.

Slash, Lucy-Bleu Knight.Aliah Anderson/Getty; Lucy-Bleu Knight /Instagram

Slash and Lucy-Bleu Knight

Aliah Anderson/Getty; Lucy-Bleu Knight /Instagram

Slash, whose birth name is Saul Hudson, initially began dating Knight’s mother, Meegan Hodges, in 1989. However, the pair split until they rekindled their romance more than two decades later in 2015.

Before sharing news of Knight’s death, the guitar icon had announced the cancellation of four shows on his S.E.R.P.E.N.T. Festival 2024 tour from July 22-27 via social media.

source: people.com