Years ago I had a conversation with a former roomate about deceased rock and pop musicians. He pointed out that for most of them the cause of death fell into one of three main categories: substance abuse (drugs/alcohol), homicide/suicide, and transportation related. At the time we could think of very few exceptions, and even now there are relatively few:
Homicide/suicide:
Sam Cooke
Marvin Gaye
Brian Jones (according to some)
John Lennon
Kurt Cobain
Substance abuse:
Jimi Hendrix
Janis Joplin
Jim Morrison
Brian Jones (according to some)
Keith Moon
Transportation:
Buddy Holly
Big Bopper
Richie Valens (all plane)
Otis Redding (plane)
Jim Croce (plane)
Harry Chapin (car)
Stiv Bator (Lords of the New Church, hit by car)
Marc Bolan (T. Rex, car crash IIRC)
Stevie Ray Vaughn (helicopter crash IIRC)
Exceptions:
Elvis (heart attack, no drugs involved?)
Roy Orbison (heart. It was his death that sparked the conversation with my roomate)
Karen Carpenter (anorexia)
Mama Cass Elliot (heart, not ham sandwich)
Freddie Mercury (AIDS)
George Harrison (cancer)
As it is, one could question some of the exceptions. If you consider food a substance, than Elvis and Mama Cass could be in the substance abuse category, and George Harrison late in life indicated that he thought his cancer was caused by his decades of cigarette smoking.
The other amazing thing is thinking about people who are still alive but by all rights “should” be dead for any of several reasons(Keith Richards, Jerry Lee Lewis).
The reasons so many fit one of these patterns I guess isn’t too mysterious. Rock is still a relatively young art form, so many of its founders are naturally still with us. The rock 'n roll lifestyle tends to encourage fast living (drugs, booze, fast cars), and maybe also tends to attract people of the tortured artist stripe. It is sad, though, that so many of these people have died in aviation accidents, usually on their way to or from a gig.
So, who have I forgotten? I am especially interested in any exceptions to the three main categories I have above.