Jim Morrison: Did he OD or did he disappear?

Five decades after Jim Morrison, frontman of rock group The Doors, was found dead in a bathtub in his Paris apartment, mystery still surrounds his death.

His untimely end at the age of 27 on July 3, 1971 stunned fans of the psychedelic band that broke fresh ground with such hits as "Riders on the Storm," "People are Strange" and "Light My Fire.."
No autopsy was performed, with many believing he died of a drug overdose, fuelling multiple conspiracy theories which continue to swirl today.

Morrison moved to Paris in 1971 after being convicted in the United States of indecent exposure and open profanity after allegedly exposing himself during a 1969 Miami gig. Sentenced to six months in jail, he lived in the French capital while appealing the verdict.
He lived in a fourth-floor apartment in the Marais with his partner, Pamela Courson. It was she who found him dead, officially of a heart attack.
His death was made public two days later, by which time he had been buried at Pere Lachaise cemetery - final resting place of Oscar Wilde, Edith Piaf and Gertrude Stein - following a funeral attended by just five people.
Courson at first supported the heart attack theory, but over time gave varying accounts of his death before she died of a drug overdose in Los Angeles in 1974.
Here are some of the conspiracy theories: A British journalist in 1983 pointed a finger at the US Central Intelligence Agency, saying Morrison's death was part of a plot to eliminate counter-culture figures.
Morrison's father, George Morrison, was a rear admiral in the U.S. Navy at the time.
Others even more improbably suggested that the death was down to the French secret services or a Zionist plot.
In a 2007 book, rock writer Sam Bernett...