Credited from: BBC
Actor Hayden Panettiere's death has been ruled an accidental overdose involving various drugs, particularly fentanyl. The Greenville County Coroner's Office confirmed that she was found unresponsive on August 16 at a residence in South Carolina, and despite paramedics' efforts, was pronounced dead at the scene, according to CBS News.
The autopsy revealed that the cause of death was the "toxic effects" of fentanyl and other substances including Alprazolam, a generic form of Xanax, methocarbamol, and quetiapine. "No signs of trauma" were found to contribute to her death, in accordance with findings from the coroner's office, according to BBC and Los Angeles Times.
A federal investigation is currently underway to trace the source of the drugs linked to Panettiere's death, with authorities focusing on possible suppliers in Los Angeles. Sources indicate that the investigation is similar to cases involving other high-profile overdose deaths, including that of actor Matthew Perry, as they scrutinize the possibility of counterfeit pills containing fentanyl being consumed, according to Los Angeles Times.