Federal law enforcement investigators have stepped into the ongoing inquiry surrounding the death of actress Hayden Panettiere, focusing efforts on tracing the origin of the substances found at the scene. According to reporting by TMZ, Panettiere’s on-and-off partner Brian Hickerson has met with the Drug Enforcement Administration (DEA) as authorities work to identify a Southern California dealer suspected of providing counterfeit drugs.
Panettiere, known for her roles in Heroes and Nashville, was found dead at age 36 on August 16 at a residence in Greenville, South Carolina. Paramedics responding to the scene located Narcan inside the apartment, and dispatch calls reported a suspected overdose, according to law enforcement records cited by the Daily Mail. Greenville Police and the coroner’s office are running parallel investigations while toxicology results remain pending to officially determine the cause of death.
Federal Investigation and DEA Involvement
Investigators are zeroing in on the source of the substances recovered from the Greenville apartment where Panettiere was temporarily staying. According to a source speaking to TMZ, local and federal authorities believe someone sold the actress drugs that may have caused her death. Hickerson, who was present at the Judson Mill Lofts apartment alongside his brother Zachary when Panettiere was pronounced dead, has spoken with federal agents as part of that probe. A police report notes that Hickerson handed authorities a bag of medication belonging to the actress after emergency responders arrived.
Autopsy findings released thus far indicate no signs of trauma that would have contributed to the death, leaving the definitive determination dependent on toxicology reports.
Turbulent Relationship History and Public Struggles
The ongoing investigation brings renewed scrutiny to Panettiere and Hickerson’s volatile relationship history, which began in 2018 following the actress’s split from Wladimir Klitschko. Court records detailed by The Independent outline multiple legal incidents, including a 2019 arrest in Los Angeles and a subsequent arrest in Wyoming on Valentine’s Day in 2020. In July 2020, Panettiere publicly shared a domestic abuse hotline on social media and stated her intent to hold her partner accountable. By April 2021, Hickerson pleaded no contest to two felony counts of injuring a spouse or girlfriend, serving 45 days in jail alongside probation and domestic violence classes.
Despite their history, the pair periodically reconciled. In a 2023 interview with The New York Times, Panettiere acknowledged that feelings remained between them, noting that their renewed connection was contingent on Hickerson maintaining his sobriety. Earlier in 2020, Panettiere spent eight months in a treatment facility addressing opioid and alcohol addiction, a struggle she detailed candidly in her May 2026 memoir, This Is Me: A Reckoning.
Memorial Planning and Family Friction
As law enforcement continues examining the circumstances of her passing, preparations for Panettiere’s celebration of life have revealed divisions among her relatives and associates. According to reports from Page Six and the National News Desk, Hickerson has been excluded from the memorial guest list. Further friction surrounds the family dynamics following the tragedy; Lesley Vogel, Panettiere’s mother, told the Daily Mail that she found Hickerson’s account of her daughter’s final hours to be “full of holes”, prompting her to pressure South Carolina law enforcement for a thorough examination.
Panettiere is survived by her 11-year-old daughter, Kaya, who has been in the care of her father, Wladimir Klitschko, since Panettiere voluntarily gave up custody in 2018 to focus on her recovery. Authorities have not yet made any arrests in connection with the ongoing drug supply investigation.