Autopsy: The Last Hours Of...

James Gandolfini's acting career takes off when he stars in "The Sopranos."

In 2013 country singer Mindy McCready took her own life; Dr. Michael Hunter looks into the cause.

On April 1, 1984, Marvin Gaye is shot by his father; Dr. Michael Hunter reopens this bizarre case.

Mary Tyler Moore, considered the sweetheart of American television, faces a life of difficulty.

On June 25, 2009, actress and 1970s icon Farrah Fawcett dies of a rare form of cancer.

On May 16, 1984, comic Andy Kaufman dies but some believe he may have faked his own death.

Andy Warhol rises to fame in the 1960s as the trailblazing leader of the pop art movement.

Muhammad Ali was one of the greatest boxers the world has ever known, until his death in 2016.

In 1991, legendary jazz trumpet player Miles Davis died suddenly; an examination into his death.

James Brown was one of the most iconic performers of all time; in 2006 he died unexpectedly.

Cass Elliot was found dead in London when she was 32 years old and her death shocked the world.

In 1955, 24-year-old actor James Dean died in a car crash; mystery surrounds the cause of the crash.

In 2011, beloved actress Elizabeth Taylor dies; her life had been plagued by tragedy and addiction.

George Michael, one of the most brilliant performers of his generation.

In 2001, amid secrecy, former Beatle George Harrison dies after a short battle with lung cancer.

In 2016, David Bowie dies from cancer just two days after his 69th birthday.

In 2003, legendary singer Johnny Cash dies in Nashville from respiratory arrest.

Provocative and iconic rock star Lou Reed transformed the face of modern music.

In 1973 singer and musician Gram Parsons died in California at only 26 years old.

Singer Roy Orbison dies at age 52 after collapsing at his mother's house.

Florence Ballard, a founding member of the Supremes, dies of a heart attack.

Chris Cornell was an American musician, singer and songwriter who struggled with depression.

On Sept. 27, 2017, media magnate and international playboy Hugh Hefner dies.

On April 6, 1998 country icon Tammy Wynette was found dead her Nashville home.

Carrie Fisher died in 2016; she was best known for playing Princess Leia in the "Star Wars" films.