caseynodrugs.jpg We already knew that Casey Johnson died of "natural causes," and now the Los Angeles County Coroner's office has released the full autopsy report, which confirms that the heiress didn't have any illegal drugs in her system.

However, the report does point out that Casey had a history of "possible excess use of Nyquil," and various medications were found at the scene of her death, including insulin, Motrin and clonazepam.