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The suspect, Payton Gendron, 18, surrendered to police on Saturday at the Buffalo, New York, grocery store after what authorities called an act of "racially motivated violent extremism." He apparently publicized a racist manifesto on the internet.
Gramaglia told reporters that Gendron had been taken into custody and given a mental evaluation over a day and a half last June but was released.
“The evidence that we have uncovered so far makes no mistake this is an absolute racist hate crime that will be prosecuted as a hate crime," Buffalo Police Commissioner Joseph Gramaglia told reporters on Sunday.