CONCORD, N.H. (Map, News) - On the campaign trail, presidential hopeful Bill Richardson tells a moving story about a New Mexico Marine killed in Iraq and his mom. But is it true? Three years ago, Richardson attended a memorial service for Lance Cpl. Aaron Austin, 21, who died in April 2004. As he campaigns for the Democratic nomination, the New Mexico governor often recounts an emotional conversation with Austin's mother, saying she thanked him for the federal death benefits she had received and even showed him the government check. In speeches in New Hampshire, Richardson has gotten Austin's name wrong...