What a pity! Saw him and his plane not long before his surgery at our home airport last fall. He was very very busy as always.
Some ten years ago I sat in the cafeteria of a simulator facility in Dallas at the table next to his. The poor guy could hardly eat his lunch because really everybody would make sure to pass by his table, greet him and have a short chat. And there are also memories of hearing him on the radio when he flew home from a Formula 1 race. Controllers would instantly recognise him and ask about the race results.