I have just heard this sad news on another forum, Pontefract air rifle club, who have had a long relationship with Bill and Air arms as they supplied all our "Club guns" and pellets too i believe, just one of the many things behind the scenes that they did for our sport, a great loss. I met Bill a few times while at the gamefairs and while i don't know all the details i do know he wasn't always in the best of health and when i met him at the last one he probably should have been at home instead, but he didn't let that stop him.
Rest in peace Bill.