Here is a FB post, apparently this sad news is true:
To Dale's Facebook friends. This is his wife Terry. Dale died Monday night from complications of the treatment for lymphoma. He was my soulmate and loving partner/husband for more than 30 years. My fondest memories of him are dancing to his playing in numerous federal and state parks around the west. I know he loved facebook and all his friends in this world --- especially fellow musicians and guitarists. We can remember him through his CDs and on his you-tube channel where you can see his elegant fingers at work.