On Thursday she is said to have gone on a 'wild binge' where she clashed with security guards. The next evening she 'partied heavily, drank and chatted loudly' with friends at the hotel bar.
Bottles of Lorazepam, Valium, Xanax and a sleeping medication were found in the hotel room, it has been claimed.
The drugs were believed to have acted as sedatives, causing her to fall asleep in the bathtub once they had been mixed with alcohol from the previous evenings.
Paramedics battled to revive the singer but she was pronounced dead at 3.55pm, hours before she had been due to perform at a pre-Grammys party at the same hotel.
Los Angeles coroner's office refused to comment on rumours that
