NASA astronaut who served on three Space Shuttle missions to the International Space Station.
He attended the University of Tennessee Space Institute after receiving a Bachelor's degree in aerospace engineering from the U.S. Naval Academy.
He served in the United States Marine Corps as a lieutenant.
He married Corinna Lynn Leaman, with whom he had four children.
He and fellow pilot Mark Polansky were both members of NASA Astronaut Group 16 in 1996.