For those who have never heard of him, he was the co-creator of the original Dungeons and Dragons Role-playing game.
This makes me incredibly sad - without D&D I wouldn't be the person who I am today. Gaming has taught me a lot, and not just those jokey '1001 things I learned from playing D&D' type lists.
I don't think I'd be blogging if it were for the effect that RPGs have had on my life.
Rest In Peace.