I'm sad to hear Jack is having some problems. Hopefully he's on the road to recovery.
Just the other day, I was going through some mementos that had been stored away for a long time. Many years ago, Jack was hired by TCI in Rochester, NY to teach the drum line. He also took time to get me started as a drummer. I still have the sticks he gave me to learn with. I remember the lessons on which he worked with me on Don Brown's back porch. Even then, as I was just a dumb kid, I knew that Jack was truly a great man and a great instructor. Because the corps needed horn players, I switched from drumming to the horn. The rest is history but I'll always remember those times with Jack.