'The Patriot' actress died of an accidental drug overdose

Actress Skye McCole Bartusiak, who memorably portrayed Mel Gibson's daughter in “The Patriot,” died of an accidental drug overdose, the Harris County Institute of Forensic Sciences confirmed to FOX411.

Bartusiak’s mother, Helen Bartusiak, said at the time of her death, the actress had been living in a garage apartment at her parents’ home. She said the actress’ boyfriend found her unresponsive on her bed on July 19.

The Harris County Institute of Forensic Sciences told us her death was a result of “combined toxic effects of hydrocodone and difluoroethane with carisoprodol.” Difluoroethane is a chemical that is typically inhaled.

Bartusiak made her acting debut in the television miniseries “Storm of the Century” in 1999 and also had a role on "24" in 2002-2003.

She made her film debut in the “The Cider House Rules” in 1999 and starred with Michael Douglas in “Don’t Say a Word” in 2001. Her most recent move was “Sick Boy” in 2012.