I am greatly saddened to read of Jeff's passing. He and I were students at Stetson University (DeLand, FL) at the same time and were both majoring in chemistry.
We were good friends and traveled around campus together, having many good conversations about many topics. We would challenge each other to spontaneous verbal quizzes about all things chemical - and he usually bested me over a series of quizzes in any given day.
I lost contact with him when he went on to medical school, but knew that he was going to practice medicine somewhere in the Daytona Beach area. Although I did not see him after he earned his MD degree, I had no doubt that he would be a very good doctor.
My sincere condolences go out to his family and all his patients that received great care from him.
Rest in peace, Jeff.