For years, Rachel Dolezal led a secret life in the Pacific Northwest. Her friends believed she was a black woman with a passion for African-American issues. Others saw her as a vocal civil rights leader who later became the local N.A.A.C.P. president in Spokane, Wash. She was also a liar, her parents said. Estranged from their daughter, her parents came forward in June 2015 to out her as a white woman who had carried on a giant ruse, exposing her in what quickly morphed from a local story into an international sensation.