From the NY Times:
Dr. Jack Kevorkian, the central figure in the tumultuous national drama surrounding assisted suicide, died Friday in a Michigan hospital. He was 83 and lived in Bloomfield Hills, Mich.
The cause of his death was not immediately known, but local media reported that he had suffered from kidney and respiratory problems and that his condition had been worsening in recent days. His death was confirmed by Geoffrey Feiger, the lawyer who represented him during several of his trials in the 1990s.