Federal narcotics investigators have joined the ongoing probe into the August 16 death of actress Hayden Panettiere, raising questions about the circumstances surrounding the 36-year-old’s sudden passing in South Carolina.

Investigation Escalates With Federal Involvement

Lesley Vogel, Panettiere’s estranged mother, told NBC News on August 19 that law enforcement informed her a narcotics investigator had been assigned to the case. Multiple reports indicate the Drug Enforcement Administration is now assisting with the investigation. Vogel, 70, said she remains uncertain about the current status of the probe, which continues three days after her daughter’s death.

The Greenville Police Department discovered Panettiere unresponsive at a Greenville, South Carolina residence on Sunday, August 16. Emergency responders pronounced the Nashville actress dead at the scene. An autopsy completed the following day found no signs of trauma that would have contributed to her death, according to official reports.

Family Conflict Emerges Following Tragedy

Vogel, who previously managed her daughter’s career, immediately pointed fingers at Brian Hickerson, Panettiere’s companion at the time of her death. The mother described Hickerson as someone the family had been trying to remove from Panettiere’s life for an extended period. Vogel told reporters that Panettiere had lost her way and failed to stay true to herself despite possessing many incredible attributes.

The comments sparked immediate backlash given the well-documented tension between mother and daughter. Panettiere addressed their complicated relationship in her memoir, This Is Me: A Reckoning, published earlier in 2026. CBS Mornings host Gayle King criticized Vogel’s public statements during the Wednesday broadcast, questioning the appropriateness of the mother’s remarks about her deceased daughter.

Investigation Continues As Questions Mount

Skip Panettiere confirmed his daughter’s death in a statement released Sunday, describing her as an incredible light and force of nature. Authorities have not released an official cause of death, citing pending additional studies and further investigation. The involvement of federal narcotics investigators suggests law enforcement is examining potential substance-related factors in the actress’s unexpected passing.

The combination of federal DEA involvement, ongoing forensic studies, and the presence of Hickerson at the death scene indicates investigators are pursuing multiple leads. The final autopsy results and toxicology reports will determine whether criminal charges follow this expanded investigation into the beloved actress’s untimely death.