Hayden Panettiere death ruled accidental, Greenville police close case

Greenville police have closed their investigation into Hayden Panettiere's death, ruling it accidental more than two months after the actress died. The 36-year-old star of Heroes and Nashville was found unresponsive at a residence in Greenville, South Carolina, on August 16.

Toxicology tests revealed fentanyl, Xanax, methocarbamol, quetiapine and 4-ANPP in her system. The Greenville County Coroner's Office confirmed in September that she died from the toxic effects of several drugs.

Emergency crews were called after Panettiere was found in cardiac arrest, but attempts to save her were unsuccessful. An autopsy found no signs of physical trauma contributing to her death.

Police said the ruling was based on the medical examiner's determination and the investigation's findings. The local investigation is now concluded.

Questions remain over a separate federal inquiry reportedly involving the US Drug Enforcement Administration. It is unclear whether that federal investigation has also concluded.

Panettiere had spoken openly about her long struggles with substance abuse. She had an 11-year-old daughter, Kaya Evdokia Klitschko, with ex-fiance Wladimir Klitschko.