Rutsey was famous for playing on Rush’s 1974 debut album, including the song “In The Mood,” before deciding to leave the group due to health concerns. Rutsey suffered from diabetes and was unable to go on extended tours with the group.
Rutsey was sort of the Pete Best of the “progressive” rock scene; Rush replaced him with Neal Peart – the famously-technocratic drummer who is to percussionists what Dungeons and Dragons is to weekend recreation – on the brink of their big leap to fame as the leading Heinlein/Ayn Rand/Tolkein-based rock band of its era.
Or any era, I guess.
Footnote: My first “real” band – which included a reasonably-frequent commenter on this site – played “Working Man”, the best song from that first album (shaddap about “Finding My Way”), as defined by a guy who has never been a big fan of the genre, but knows great musicians when he sees them…
Anyway – condolences to the Rutsey family.