I dont know if this will be seen by anyone. I am taking a college course through edx online and the instructor reminded me a little of Mr. Fisher so I googled him to see if I could find anything. Unfortunately I came across this information.
Math was never my strong subject in high school. I sure remember Mr. Fishers class though. He always engaged the class through music and the eating of his organic food grade soap he kept at his desk, it may not have been soap. Maybe, maybe not. He was a great person and I'm very sad that I am just now finding out. Blessings to those who lost him. I'm sorry for your loss, very much so.