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Tomasa Guzman holds a photo of her son Deibis Paz Guzman during a vigil in Tapachula, Mexico, on December 17, 2013. The Honduran woman was part of a group of Central Americans who came to Mexico in search of family members who disappeared there, many while on their way north to the United States. The group, mostly mothers looking for their children, spent 17 days touring 14 Mexican states in search of their loved ones.<br />
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Guzman says her son migrated north in 2011, and last called him from Guadalajara, Mexico. She hasn't heard from him since.