Wikipieida give this report of her death...
On February 11, 2012, Houston was found dead at the Beverly Hilton Hotel, in Beverly Hills, California, of causes not immediately known. According to TMZ, Houston was running late to get ready for the pre-Grammy Awards party being held four floors down in the hotel by her mentor, Clive Davis. After her stylists and bodyguards became concerned that Houston was in the bathroom for over an hour, they knocked on the door but Houston did not answer back. A female hairdresser went to check on Houston and found her lying in the bathtub. A bodyguard came in and quickly pulled Houston out of the bathtub. It was reported that Houston's face was underwater and her legs were up like she had slid down the back of the bathtub. Her body was reported to be very cold as her bodyguard unsuccessfully attempted to perform CPR before alerting hotel security. Beverly Hills paramedics arrived at approximately 3:30 p.m. and found the singer unresponsive and performed CPR. Houston was pronounced dead at 4:00 p.m. PST. Local police said there were "no obvious signs of criminal intent".
On the Thursday before her death, Houston visited singers Brandy and Monica, together with Clive Davis, at their rehearsals for Davis' pre-Grammy Awards party. A reporter for the Los Angeles Times reported that Houston was reeking of alcohol and looked very bloated and disheveled, wearing mismatched clothing with her hair dripping of either water or sweat.
During the two singers' rehearsal, Houston was seen skipping around the lobby or wandering aimlessly around the hotel ground. At one point guests of the hotel became so concerned that they reported her behavior to security after she was seen doing handstands by the hotel pool. Houston attended a party that evening held by Kelly Price at Tru nightclub in Hollywood, California. A scuffle was narrowly avoided with singer Stacy Francis. Reports say that Houston got belligerent and her boyfriend Ray J was forced to step in, although he defended Francis. Houston attempted to raise her hand, but was calmed down. Later in the evening, Houston gave what is now her final onstage performance when she took to the stage along with Price for a one minute performance of "Jesus Loves Me". Houston was photographed leaving the club clearly intoxicated and with scratches and blood stains on her legs, although it is unknown where these marks came from.[221
Hey, I'm calling you back. Oooooh, she's been a bitch tonight!!