died on November 15, 2017, at the age of 21. The cause of Lil Peep's death was an accidental overdose of fentanyl and Xanax, according to the Pima County Office of the Medical Examiner in Tucson, Arizona. Fentanyl is a powerful synthetic opioid pain medication, and Xanax is a benzodiazepine commonly used to treat anxiety and panic disorders. The combination of these drugs proved to be fatal for Lil Peep, leading to his untimely death. His death sparked discussions about mental health, drug use, and the pressures faced by young artists in the music industry.