Committment to the lifestyle
I was only kidding about the rockers, Lindy. They probably did succumb to terminal overindulgence, but you cannot rule out that they were offed by a rightist cabal because of their influence on youth and their free-thinking lifestyles; and their deaths faked to discredit them posthumously. I would not be surprised by anything John Mitchell might have done.
Likewise, you can't rule out that the three K's were murdered because of their progressive attitudes, but again, I doubt it. There is certainly some circumstantial evidence to suggest it, But, personally, I doubt it. I trust my instincts on this one.
"Truth is stranger than fiction, because fiction has to make sense." (Mark Twain).