- Buffalo mass-shooting suspect self-identified as White supremacistKPIX CBS SF Bay Area - Investigators say racial-hatred reason behind mass shooting in Buffalo, New York | FOX 7 AustinFOX 7 Austin - Replacement Theory, a Fringe Belief Fueled Online, Is Refashioned by GOPThe New York Times - ‘Replacement theory’ moves from fringe to reality with Buffalo mass shooting | EditorialThe Philadelphia Inquirer - View Full Coverage on Google News .