Lucy-Bleu Knight, the stepdaughter of Guns N’ Roses lead guitarist Slash, died on July 19 at the age of 25. Knight’s cause of death has been revealed more than a month later. Knight’s cause of death was hydrogen sulfide toxicity, and her manner of death is suicide, the Los Angeles Medical Examiner’s Office confirmed to the New York Post this August.

Inhaling high concentrations of hydrogen sulfide can result in “extremely rapid unconsciousness and death,” according to the Centers for Disease Control and Prevention (CDC) website . “Knight was found unresponsive in a private residence on July 19 by law enforcement conducting a welfare check,” the coroner’s office told the Post . Her death was pronounced that same day at 3:00 p.

m. “An examination was performed by a deputy medical examiner on July 22,” the coroner’s office added. “The cause of death was certified on August 29.

” Slash, whose real name is Saul Hudson, announced his stepdaughter’s death in an Instagram post on July 21. “Lucy-Bleu Knight (December 6, 1988), 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, passed away peacefully in Los Angeles, CA on July 19, 2024,” he wrote. A post shared by Slash (@slash) “Lucy-Bleu was an incredibly talented artist, a passionate dreamer, and a charming, lovable, sweet soul,” Slash added.

“The family asks for privacy at this time.