Hayden Panettiere died from accidental overdose involving fentanyl, coroner says

Actor Hayden Panettiere, 36, died from an accidental overdose of multiple drugs, according to a coroner's report in South Carolina. The 36-year-old actress was discovered unresponsive in her Greenville apartment on August 16. Her boyfriend Brian Hickerson and his brother Zach Hickerson were present at the scene. The Greenville County Coroner's Office revealed that fentanyl, its chemical byproduct, alprazolam, a muscle relaxant, and a drug used to treat mental health disorders were among the substances found in her system.

The coroner's office has not disclosed further details from the autopsy report, which is still under investigation. The police report confirmed that over 40 minutes of CPR and advanced resuscitation efforts were performed before Panettiere was pronounced dead. No signs of trauma were found during the autopsy. A publicist for the family stated that the investigation is ongoing and complex.