Whitney Houston was a chronic cocaine user who had the drug in her system when she drowned in a hotel bathtub, coroner's officials said Thursday after releasing autopsy findings that also noted heart disease contributed to her death.
The disclosure ended weeks of speculation about what killed the Grammy-winning singer on Feb. 11 on the eve of the Grammy Awards.
Houston was found submerged in the bathtub of her room at the Beverly Hilton Hotel, and her death was ruled accidental. Several bottles of prescription medications were found in her hotel room, but coroner's officials said there weren't excessive quantities.
Beverly Hills police said in a statement there was no evidence of wrongdoing in connection with Houston's death.
Coroner's Chief of Operations Craig Harvey said cocaine and its byproducts were found in Houston's system, and the drug was listed as a contributing factor in her death. He said the results indicated Houston was a chronic cocaine user.
Toxicology results also showed Houston had marijuana, Xanax, the muscle relaxant Flexeril, and the allergy medication Benadryl in her system. Houston died just hours before she was scheduled to appear at producer Clive Davis' pre-Grammy Awards bash.
The singer also had a heart disease that caused blockages in her arteries. Assistant Chief Coroner Ed Winter said the condition is common in drug users, although he said it wasn't clear whether Houston had a heart attack on the day she died.
"It just beats up their heart and they will go to use and they will have a heart attack," he said.
The exact amount of cocaine in Houston's system was not disclosed Thursday but will be contained in a full autopsy report to be released in about two weeks, officials said.
Family and friends said after Houston's death that they didn't believe she was still abusing drugs.
"I don't think drugs was an issue for her before her death. I don't know what happened that day," Patricia Houston said in a recent interview with Oprah Winfrey.
Houston, 48, was buried in a New Jersey cemetery next to her father after an emotional four-hour funeral service that was attended by friends, family and superstars such as Oprah Winfrey, Tyler Perry, Alicia Keys, Mariah Carey, Mary J. Blige, Jennifer Hudson and Roberta Flack