Captain Marro enlisted in the U.S. Navy in 1984. After graduating from boot camp, he attended “A” and “C” schools and served as a hospital corpsman (pharmacy technician) at Naval Hospital, Newport, in Newport, RI from 1985-1988. After separating from the Navy to complete his academic studies, he obtained B.S. and M.S. degrees in radiological health physics from the University of Massachusetts-Lowell and has served as a commissioned officer since 1995. He is currently working towards completion of a M.S. degree in Nuclear Engineering. His immediate family includes his wife Elba and three children, Alex, Isabel, and Bernadette.