FILE--This undated file photo provided by the San Juan County Sheriff's Office shows William Atchison. The Southern Poverty Law Center has included Atchison, of Aztec, N.M., on a list of assailants the organization says were influenced by the alt-right, a fringe movement that represents a mix of white nationalist, white supremacist, anti-Semitic and anti-immigration beliefs. (San Juan County Sheriff's Office via AP, file)
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