The final autopsy report for Whitney Houston was released Wednesday, revealing a few more grim details from the last few hours of the singer’s life.

The 48-year-old star was discovered face down in a bathtub at the Beverly Hilton by her assistant, who had run an errand at a high-end department store. Houston’s assistant and bodyguard pulled her from the water, says Sarah Anne Hughes of Celebritology:

A “spoon with a white crystal like substance in it” was discovered in the room, as were “a plethora of prescription medication bottles” belonging to Houston and “multiple blister packs.” A“white powdery substance” was discovered on a portable mirror found in a drawer.

Houston died  in February of “drowning and effects of atherosclerotic heart disease and cocaine use,” according to a toxicology report . Cocaine, marijuana and prescription drugs were present in Houston’s system at the time of her death.

Beverly Hills police had been waiting for the autopsy report to be released before closing their own report, in which the agency says there were no signs of foul play, the Associated Press reports:

By the time an assistant found her face down in a bathtub on the afternoon of Feb. 11, Houston had likely been dead for at least an hour. The water was so hot it scalded part of her body.

Nearby, on the bathroom counter, investigators found a small spoon described by investigators as having a “crystal like substance” in it and in a drawer they discovered a white powdery substance. The dozen prescription drug bottles found in Houston’s suite of the Beverly Hilton Hotel led investigators to initially suspect she died of an overdose, but after further examination and toxicology results they concluded she drowned accidentally. Heart disease, which caused a 60 percent blockage in one of her arteries, and cocaine use were listed as contributing factors.

Toxicology results also showed Houston had marijuana, Xanax, the muscle relaxant Flexeril, and the allergy medication Benadryl in her system, but none are considered factors in her death.

The singer was in the middle of an attempted come-back, recently completing filming on a remake of the movie “Sparkle.” The singer/actress was attempting to overcome some of her addictions, the Associated Press reports:

The singer had battled addiction for years, but friends and family have said she appeared committed to making a comeback in the months before her death.

“The biggest devil is me. I’m either my best friend or my worst enemy,” Houston told ABC’s Diane Sawyer in an infamous 2002 television interview with then-husband Bobby Brown by her side.

Brown has faced his own troubles since his ex-wife’s death. He was arrested and charged last month with driving under the influence of alcohol in Los Angeles and faces a court date later this month.

The details of Houston’s death have not yet impacted plans to release “Sparkle” later this year. A trailer released Monday featured Houston prominently in her role as the matriarch of a family of girls who form a singing group and struggle with fame and addiction.

More on Whitney Houston:

Whitney Houston autopsy says spoon, white residue, powdery substance found in hotel room

Celebritology 2.0 : Whitney Houston's autopsy released

Autopsy report details room where Whitney Houston died, signs of singer's drug use, abuse

White residue found in Whitney Houston's hotel (1:15)