Authorities say Kelsey Peterson, a sixth-grade math teacher and basketball coach in Nebraska, fled to Mexico in 2007 with a 13-year-old former student so the two could "start a life" together. After a week-long search, the two were located through a global-positioning device on Peterson's phone, according to a Mexican official. Peterson was arrested and returned to the United States to face charges of kidnapping, child abuse and contributing to the delinquency of a minor in Nebraska.

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