The official cause of death has been confirmed for Hayden Panettiere. The Greenville County Coroner’s Office in South Carolina has determined Panettiere died from the toxic effects of fentanyl, 4-ANPP, Alprazolam, Methocarbamol, and Quetiapine. The manner of death has been ruled accident. Fentanyl is a powerful synthetic opioid painkiller; 4-ANPP is a chemical precursor used […]

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Source: Deadline.