"The final cause of death has been established as drowning due to atherosclerotic heart disease and cocaine use," said Los Angeles County Coroner chief, Craig Harvey.
Whitney Houston died on February 11, hours before a pre-Grammy party and was found submerged in the bathtub of her room at the Beverly Hilton. Houston's well-documented history of chronic cocaine use contributed to atherosclerotic heart disease -- a hardening of the arteries that can lead to stroke, heart attack and death.
Harvey also revealed that Houston had an "acute" level of cocaine in her system, suggesting that she had used the drug "immediately prior" to drowning. Other drugs found in her system -- marijuana, Benadryl, Xanax and Flexeril -- were at "therapeutic or sub-therapeutic levels" and did not play a significant role in her death.
Cocaine coupled with the atherosclerotic heart disease led to a "cardiac event," although Houston was reportedly conscious before slipping underwater, therefore drowning has been established as the main cause of death. [TMZ]