One 20th-century biographer, John Watney, concluded: "He did not die from a self-inflicted wound...He died of a heart attack brought on by an overdose of drugs".
二十世纪的传记作家，约翰·沃特尼（John Watney）则认为：“他并非死于自杀……他死于吸毒过量造成的心脏病。