It sounds like he was a great fella who never let anything slow him down, and he'll be missed. Really sad news. He reminds me a lot of my grandmother, who was a tough old dame. She was a fully independent divorcee in her 50s who became a great social worker and she never stopped learning until Alzheimer's caught her up. She sent me my first email back in the 90s and always seemed to know what was coming next. Good people and hopefully we get to be like them.