Rocket Scientist

When I lived in Orlando,  shortly after the dinosaurs disappeared, I ran with the Orlando Front Runners.  A great group.  There were identical twin brothers who ran with the group.  I don't remember what one of them did, but the other one made it easy to remember, his favorite T-shirt read, "As a Matter of Fact I Am a Rocket Scientist."  He was an engineer responsible for the shuttle main engines, the ones shown above.  I wonder what he is doing today?  I wonder if he is still running?