Authorities are not accepting Hayden Panettiere's death as a simple overdose of prescribed medication. They are investigating whether criminal conduct may be involved.
Law enforcement sources say a death investigation is underway to determine if any illegality contributed to the 36-year-old actress's passing.
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On Wednesday morning, Greenville PD officers arrived at the family home of her boyfriend, Brian Hickerson. Police reportedly want information from him about circumstances connected to her death.
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One source explained that the investigation was triggered because her death was "unexpected" at age 36.
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Police are conducting a parallel investigation with the coroner to establish the cause and manner of death.
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The autopsy has been completed, but toxicology results are still pending.