Marianne Faithfull has stirred up the mystery surrounding Jim Morrison's death in a revealing new magazine interview, insisting her ex-boyfriend supplied the drugs that cost The Doors legend his life.

The singer/poet is alleged to have died of a heroin overdose in Paris, France in 1971, but as no autopsy was performed, the exact cause of his death is still disputed.

But now, in an explosive Mojo article, Faithfull has accused her ex-boyfriend, aristocrat Jean de Breiteuil, of supplying the drugs that killed Morrison.

She claims she knew something terrible was about to happen and chose to stay away from the apartment Morrison shared with his girlfriend Pamela Courson when de Breiteuil was planning a final visit.

Faithfull tells Mojo, "I could intuitively feel trouble. I thought, 'I'll take a few (sedative) Tuinal and I won't be there. And he went to see Jim Morrison and killed him."

But she insists the drug overdose was an accident: "The smack (heroin) was too strong? Yeah. And he died. And I didn't know anything about this. Anyway, everybody connected to the death of this poor guy is dead now. Except me."