The letters to the Editor in the December issue of American Motorcyclist had a letter from Bob Haigis of Uxbridge about the passing of Joe Proia. I immediately recognized the name. Joe was a motorcycle instructor. He owned Ironstone Ventures, an MSF certified instruction firm. I learned how to ride from Joe in July 1998. The letter stated he suffered a fatal attack before going of the road on his bike. Very sad.
https://www.legacy.com/obituaries/thesunchronicle/obituary.aspx?n=joseph-m-proia&pid=193876261&fhid=2722