Forensic personnel arrives at a high school where a student opened fire on his classmates in Monterrey, Mexico, on January 18, 2017. A high school student shot his teammates at a college in Monterrey, an industrial city in northeastern Mexico, in an unprecedented event that left five people injured, including the assailant who attempted suicide, authorities in the state of Nuevo Leon reported. / AFP / Julio Cesar AGUILAR        (Photo credit should read JULIO CESAR AGUILAR/AFP/Getty Images)
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