Hayden Panettiere died from accidental overdose involving fentanyl, coroner says

Actor Hayden Panettiere died from an accidental overdose of several drugs including fentanyl, a coroner in South Carolina said Tuesday.

Panettiere, 36, was found unresponsive in an apartment in Greenville, South Carolina, on August 16. Her on-and-off boyfriend Brian Hickerson and his brother Zach Hickerson were at the home.

According to a statement from the Greenville County Coroner’s Office, a combination of fentanyl and its chemical byproduct, as well as the anti-anxiety medication alprazolam, a muscle relaxer and a drug used to treat major depression and other serious mental health disorders, were found in Hayden Panettiere’s system.

The office did not release further details from the autopsy report of the onetime child star.