This is a picture of Master McCuskey teaching pressure point theory and application at my dojo decades ago.
Dan had a heart attack late last week and passed away last night.
He introduced me to pressure point in the 80s by knocking me out with a Lung 1 & 2 strike. I was sold before my butt hit the ground. He was generous with his knowledge and time in spreading the word on Ryukyu kempo karate.
He was always so kind to myself and the students of Goju-Shorei and he will be missed deeply.