Bachelor of Science in Mechanical Engineering, South Dakota State University, 1988; Master of Science in Aeronautical and Astronautical Engineering, Ohio State University, 1995; Doktortitel in Aeronautical and Astronautical Engineering von der Ohio State University, 1999; Semifinalist bei der Astronautenauswahl der NASA-Gruppe 18; January 2006 - November 2008 Director, Communications Office of the Assistant Secretary of Defense; seit November 2008 Director, Signals Intelligence Systems Acquisition, National Reconnaissance Office, Office of the Assistant Secretary for Space, Chantilly, Virginia.