Rick Tasco just posted this on Facebook. I share it here for all you who knew Roger and don't have Facebook.
"It is with extreme sorrow that I announce the passing of my partner of 47 years Roger Duncan. He passed away suddenly yesterday morning of unknown causes. I am awaiting the medical examiner's report to see if they have anything definitive. Many of you know that Roger was suffering from back pains for the last month and somehow this may be somewhat responsible. Roger was the backbone of Superstition and it won't be the same without him. He did not want a viewing or celebration of life so posting this on facebook is one way to celebrate his life. He had many friends and customers here and I'm sure they will miss him."