The photo of Judd Blevins was unmistakable. In it, Blevins, bearded and heavyset, held a tiki torch on the University of Virginia campus, on the eve of Unite the Right, a 2017 coming-together of the nation’s neo-Nazi and white supremacist groups. Connie Vickers had found the photo online along with others showing Blevins marching alongside an angry mob — a crowd of men recorded throughout the night spitting and shouting “Jews will not replace us!” Vickers had it enlarged at a local print and copy shop. On a January night in 2023, she and Nancy Presnall, best friends, retirees and...