I handle research at HMM and would receive regular emails from him up until a few weeks ago, when he indicated he would be busy with his business commitments and would pick up making charts from our data after that. Then I never heard from him again. I peek in on these forums from time to time and noticed he stopped posting here too, and some posters were wondering where he was so I just Googled his name and the bio in the obit was consistent with what I knew about him. But other than email exchanges I had never met him. But I never encountered anyone so enthusiastic about our charts.