Or...maybe y'can Una. Shite does happen right? That said it's easy enough to wonder if there were difficulties that age/circumstance may have been responsible for. [dire illness, serious personal probs etc]
In situations like that it's not the first time someone looked down the road and said no more. He was quite the personality for many years. Feller did ok for himself with his unique take on fitness. Had he been a bit of a recluse in recent yrs? Not heard his name much for quite a while.