PHOENIX (AP) — The leader of an offshoot polygamous sect near the Arizona-Utah border has pleaded guilty to conspiring to transport underage girls across state lines in what authorities say was a yearslong scheme to orchestrate sexual acts involving children.

Samuel Bateman also pleaded guilty on Monday in U.S. District Court in Phoenix to conspiring to commit kidnapping in a plan to free underage girls who had been taken into Arizona state custody. His plea agreement recommends a sentence of 20 to 50 years in prison, though one of his convictions carries a possible maximum sentence of life in prison.

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