Served as Mission Specialist on the final Space Shuttle mission.
He attended UC Berkeley and the University of Houston, and served in the U.S. Air Force.
He marched in President Barack Obama's 2009 inaugural parade, carrying an American flag and wearing a prototype of NASA's next generation spacesuit.
He married Margie Dotson and had two children.
He marched in President Barack Obama's 2009 inaugural parade.
