According to the 'about the author' from The Ultimate Hitchhiker's Guide collection, he lives in London and France. I hadn't heard of anything death-related, though.
~t
It was questioned. But all too true. “sudden heart attack at age 49”
tributes: <http://www.douglasadams.com/cgi-bin/mboard/info/tlist.cgi>
He died ~ May 12, last year. Farewell.
“so long and thanks for all the fish.”
