That sucks!
I had the pleasure to meet him once at a book launch in London. I monopolised his time for about half an hour with my fanboy gushing and questions. He was a perfect genleman about it and was happy to discuss almost any type of motor racing.
At the end of our talk he looked at his watch and said: Oh. I was supposed to give a speech. Its my biography we're flogging tonight!
RIP Sir John.