Robert Keith Packer’s sister asked people not to judge him by his cover, a “Camp Auschwitz” sweatshirt. A prosecutor said he was wearing a Nazi SS T-shirt underneath. The revelation of what Packer, a 57-year-old Virginia pipefitter, was wearing on Jan. 6, 2021, came Thursday when a federal judge sentenced him to 75 days for his role in the deadly riot at the U.S. Capitol. The sweatshirt, which became a symbol of the rioters’ ties to white supremacist movements, was “incredibly offensive,” U.S. District Judge Carl Nichols said before handing down the sentence. “It seems to me that he wore...