The Los Angeles County coroner's office has determined that Whitney Houston's official cause of death is: "drowning and effects of atherosclerotic heart disease and cocaine use." The coroner's office also said the manner of death was an "accident." However, the toxicology report adds that "Cocaine and metabolites were identified and were contributory to the death. Marijuana, Alprazolam (Xanax), Cyclobenzaprine (Flexeril) and Diphenhydramine (Benadryl) were identified but did not contribute to the death." [Associated Press](http://hosted.ap.org/dynamic/stories/U/US_WHITNEY_HOUSTON_INVESTIGATION?...) is also reporting the Coroner's spokesman Craig Harvey explaining their results indicated "Houston was a chronic cocaine user."