What devastating news.
John was my own personal style guru way back then, he informed much of my own tastes too and has continued to point me in the direction of good music ever since. Always admired and respected for his steadfast refusal to compromise and his matchless integrity, John will be sadly missed.
Yes, RIP John, and give 'em an earful wherever you are!
My condolencies and deepest sympathy to Sheila and the family.