Here's an interesting 1971 article posted by the original interviewer. It's relevant to the Bitches Brew era.
Enjoy the read!
Just got this in the mailbox :
"Dave McKenna passed away peacefully late last night. As some of you know he'd been sidelined for the past few years -- living out in Pennsylvania close to his son Steve. Worsening conditions from diabetes and other issues kept him from playing in recent
years. It was cancer that finally did him in."
Read more about Mr McKenna here.