Kurt Cobain

Kurt Cobain's death was ruled a suicide by self-inflicted gunshot wound to the head, but that hasn't stopped plenty of people from claiming it was a murder. The proponents of this theory -- who often place blame on the grunge icon's wife, Courtney Love -- claim that Cobain's suicide note was finished by someone else, that he had too much heroin in his system to commit the act, that Cobain was going to cut Love out of his will, and so on. The theory seems to have died in popularity in recent years but still persists, with Cobain's grandfather even admitting he believes Kurt was murdered.