In another meeting attended by the undercover agent, Mathews — who “crossed into the United States illegally — was there, the affidavit said. Later, the agent observed Helterbrand, Kaderli and Lane discuss plans to kill an unnamed, married Bartow couple who they believed belong to the Atlanta Antifascists. The agent also accompanied Kaderli and Lane as they surveilled the couple’s home and surrounding neighborhood.Atlanta Antifascists, an anonymous group that researches and exposes white supremacists online, released a statement to the The Atlanta Journal-Constitution that said the couple was not a member of its group. But the group said such plots are not unexpected.“Targeting people as members of our group has become a favorite pastime of violent white supremacists,” the statement said, adding the Base is trying “to create a general attitude of terror and paranoia.”