Police in Greenville, South Carolina, announced on Wednesday, October 28, 2026, that they have closed the investigation into the death of actor Hayden Panettiere. The department stated the decision followed a medical examiner’s determination that her death was accidental. Panettiere, 36, was found unresponsive in a Greenville apartment on August 16, 2026, where paramedics later pronounced her dead.
The closure of the case follows a coroner’s report released in September 2026, which identified the cause of death as "toxic effects" from a combination of fentanyl and four other substances. The medical examiner’s findings listed the other substances as 4-ANPP—a compound used in the manufacture of fentanyl—alongside the anti-anxiety medication Alprazolam, the muscle relaxer Methocarbamol, and the prescription drug Quetiapine. Panettiere had reportedly been in a rehabilitation facility just weeks before her death.
Greenville police Sergeant Diana Munoz stated she could not comment on whether other agencies, such as the U.S. Drug Enforcement Administration (DEA), were still conducting separate inquiries. Documents filed by Panettiere's former fiance, Wladimir Klitschko, in a California court suggested that federal law enforcement agents had previously taken possession of some of her property as part of an investigation.
The conclusion of the local investigation clarifies the legal circumstances surrounding the death for the family and the public, confirming that local authorities do not intend to file criminal charges. However, the potential for federal involvement remains an unresolved factor for the estate. If federal agencies are pursuing a separate investigation into the source of the fentanyl, it could lead to future legal actions or seizures not covered by the Greenville Police Department’s closure.
The case highlights the ongoing impact of fentanyl-related fatalities, which involves law enforcement at multiple levels of government. For the immediate future, the legal focus shifts to the California probate courts to finalize the distribution of the estate to Panettiere’s daughter. No further dates for federal updates or additional toxicology reviews have been announced at this time.