White Substance Found at Scene of Houston's Death
The report also revealed that Houston had cocaine in her system at the time of her death.
She complained of a sore throat and one of her assistants suggested she take a bath before getting dressed for the Grammy’s.
The Grammy award winning singer drowned in a bathtub at the Beverly Hilton Hotel on Feb. 11.
Coroner’s officials ruled heart disease and cocaine use as contributing factors in her accidental death.
The Associated Press Contributed to this report.