A Mexican national charged with first-degree murder in the abduction and killing of 20-year-old Mollie Tibbetts will have his trial moved from Poweshiek County to Woodbury County in northwest Iowa.  A judge on Wednesday (3/27) approved a motion filed earlier this month to have Cristhian Bahena Rivera’s first-degree murder trial moved out of Poweshiek County. Rivera’s trial is now set to be held in Sioux City on September 3. His attorneys had argued the trial should be moved to allow for more minority representation in the jury pool.  Rivera is accused of killing Tibbetts, who disappeared while out for a run July 18 in Brooklyn. Investigators recovered her body a month later in a cornfield. Officials say she was stabbed to death.  Rivera, who is accused of being in the country illegally, worked at a dairy farm a few miles from where Tibbetts disappeared.