Former Chapel Hill author Nasdijj won national acclaim writing memoirs about his brutal childhood as a Navajo Indian in the Southwest and as a father to two adopted sons who died of AIDS and fetal alcohol syndrome. In truth, he was Timothy P. Barrus, a man of Scandinavian descent who grew up in a solidly middle-class neighborhood of Lansing, Mich., and had a career writing gay pornography, according to public records and several people who know Barrus. The likelihood that Barrus had fabricated his past -- and parlayed the fiction into three successful nonfiction books -- was first raised Wednesday...