The gig is up for Warren Jeffs. ST. GEORGE, Utah (Reuters) – U.S. polygamist leader Warren Jeffs, the self-proclaimed “prophet” of a sect of breakaway Mormons, was sentenced on Tuesday to 10 years to life in prison for having forced a 14-year-old girl to marry her first cousin.The leader of the Fundamentalist Church of Jesus Christ of Latter-Day Saints, or