[Benferhat]

McKenna is more famous for his excessive use of psychedelics.

Terence McKenna: "There are only about 1,000 of these GBMs a year, so it's a rare disease. I never won anything before - why now?" Like everybody else, he suspected a lifetime of exotic drug use may have been to blame. [0]

[0] http://archive.wired.com/wired/archive/8.05/mckenna_pr.html