 Rinn obtained a Masters of Business Administration from Salve Regina College while a student at the Naval War College combining credits from studies at Stanford University, Harvard University and Salve Regina.Rinn received his commission in 1968 through the Navy's Reserve Officer Candidate program (ROC) at Navy Officer Candidate School in Newport RI.After commissioning he served on , a deploying to South America, The Middle East and the Vietnam Gun line over a three-year period.