in 2003. On March 22, 2012, the Los Angeles County Coroner's Office reported that Houston's death was caused by drowning and the "effects of atherosclerotic heart disease and cocaine use". The office said the amount of cocaine found in Houston's body indicated that she used the substance shortly before her death. Toxicology results revealed additional drugs in her system: diphenhydramine (Benadryl), alprazolam (Xanax), cannabis, and cyclobenzaprine (Flexeril). The manner of death was listed as an "accident". Reaction Pre-Grammy party The February 11, 2012, Clive Davis pre-Grammy party that Houston had been expected to attend, which featured many of the biggest names in music and film, went on as scheduled – although it was quickly turned into a tribute to Houston. Davis spoke about Houston's death at the evening's start: By now you have all learned of the unspeakably tragic news of our beloved Whitney's passing. I don't have to mask my emotion in front of a room full of so many dear friends. I am personally devastated by the loss of someone who has meant so much to me for so many years. Whitney was so full of life. She was so looking forward to tonight even though she wasn't scheduled to perform. Whitney was a beautiful person and a talent beyond compare. She graced this stage with her regal presence and gave so many memorable performances here over the years. Simply put, Whitney would have wanted the music to go on and her family asked that we carry on. Tony Bennett spoke of Houston's death before performing at Davis's party. He said, "First, it was Michael Jackson, then Amy Winehouse, now, the magnificent Whitney Houston." Bennett sang "How Do You Keep the Music Playing?" and said of Houston: "When I first heard her, I called Clive Davis and said, 'You finally found the greatest singer I've ever heard in my life. Some celebrities opposed Davis's decision to continue with the party while a police investigation was being conducted in Houston's hotel room and her body was still in the building. Chaka Khan, in an interview with CNN's Piers Morgan on February 13, 2012, shared that she felt the party should have been canceled, saying: "I thought that was complete insanity. And knowing Whitney I don't believe that she would have said 'the show must go on.' She's the kind of woman that would've said 'Stop everything! Un-unh. I'm not