Presley's drug habit is now generally accepted as a cause of death. The Encyclopedia Britannica states, simply: "Elvis Presley died of a heart attack in 1977 brought on largely by drug abuse." The Wikipedia synopsis of the singer's biography provides this summary: "Years of substance abuse and unhealthy eating severely compromised his health."

The Office of the Chief Medical Examiner has determined the cause of death for Jacob's Pillow employee Kat Sirico, who was killed in a workplace accident at the Becket, Massachusetts dance center on Aug. 1.

Danielle Spencer, the former child actor best known for playing Dee Thomas on the 1970s sitcom What's Happening!!, died on Monday at the age of 60. The actress' death was due to gastric cancer and cardiac arrest, family friend and spokesperson Sandra Jones confirmed to ABC News.

Ozzy Osbourne's official cause of death has been revealed two weeks after the rock legend died in Birminghamshire, England on July 22.

Actress Marilyn Monroe died on August 4, 1962. However, more than 60 years following her death, coroner Thomas Noguchi shared his thoughts and insights into her death.

The state medical examiners office confirmed that the cause of death for the 32-year-old man who died in a Cheshire house fire early Tuesday morning was smoke inhalation.

Jeff Bezos' mother, Jacklyn "Jackie" Gise Bezos, died on Thursday at the age of 78, the Amazon founder confirmed on social media. While no official cause of death has been released, Jeff Bezos said she had "a long fight with Lewy Body Dementia."

The late soap opera star revealed the type of cancer he had one month before he died. Learn what happened to Tristan as fan mourn him.