Fentanyl Toxicity Confirmed as Cause of Hayden Panettiere's Accidental Death
An autopsy officially determined that Hayden Panettiere's death was accidental, resulting from the toxic effects of fentanyl, with no contributing signs of trauma found.

Hayden Panettiere died from the toxic effects of fentanyl and other substances, according to a newly released report from the Greenville County Coroner’s Office. The coroner’s office listed fentanyl, 4-ANPP, alprazolam, methocarbamol, and quetiapine among the substances involved in her death. An autopsy found no signs of trauma that contributed…
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_Originally reported by [Consequence](https://consequence.net/2026/09/hayden-panettiere-cause-of-death-fentanyl/)._
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