No doubt some of the folks here have either read the Colonel's books, been to Gunsite or have trained using his methods.
I sure have.
He was one of the most influential people in the advancement of the practical pistol technique, and one of the founders of IPSC.
Here's the third part of an interview with Michael Bane shortly before Mr. Cooper passed away.
His passing surely left a big hole in our world.
The links to the previous parts are there, too, for those who missed them.