This was the late 1970's, early 1980's. He did one tour in Korea and then went to FT. Rucker for instructor duty. Unfortunately he and his two students and a fellow instructor bought the farm on 4/14/82. (Hard times for everyone) You know how it is, I'm sure you've had friends go in, I think almost everyone who stays in aviation for any length of time has lost some one they knew.
Sorry to hear about your brother. I am going to have to ask my dad if he was at Flight School at that time.