Actress Hayden Panettiere's death has been ruled an accidental overdose from drugs, including fentanyl, according to the Greenville County Coroner's Office in South Carolina. ↧ Hayden Panettiere's death ruled accidental from drugs, including fe... Actress Hayden Panettiere’s death has been ruled accidental from drugs including fentanyl, according to the Greenville County Coroner’s Office in South Carolina.