When 11-year-old Ashlynne Mike and her 9-year-old brother stepped into a stranger’s van after being dropped off by a school bus Monday, they likely believed they were heading to see a movie. The stranger, it seems, had a more sinister plan. According to authorities, he abducted the children, and in a crime that shocked the entire Navajo Nation and surrounding communities, killed Ashlynne, leaving her body along a desolate dirt road that cuts through the desert near the towering rock monument that overlooks the town of Shiprock. Late Tuesday, the FBI arrested 27-year-old Tom Begaye, of Waterflow, N.M., in connection...