Within the third band of NASA astronauts, he died while schooling for the his initial space air travel. He flew 275 fight missions in the Vietnam Battle, and entirely logged over 5,000 traveling hours. He and another astronaut had been schooling for the Gemini 9 objective when their trainer plane crashed, eliminating them both. He was wedded with two kids. Unlike fellow astronaut Neil Armstrong, he hardly ever managed to get to space.