Those of you who met Sparky at Las Vegas will remember that he was an engaging, and knowledeable speaker.
I think it was last year when he had a crash, in the mountains, while training someone.
I have just read that he is apparently down again, near Bozeman, MT.
Aero News,
http://www.aero-news.net/index.cfm is reporting that he went down in a snow storm on Tuesday.
A search is underway