Craig Cobb, the self-described white supremacist who seeks to turn Leith, N.D. into an Aryan enclave, got a taste of his own medicine after DNA test results revealed on daytime television that he’s part-African.

The Los Angeles Times reported Wednesday that a fellow white supremacist targeted Cobb with racially charged graffiti after his appearance on the “Trisha Goddard” show, where a DNA test revealed that he was genetically “14 percent sub-Saharan African.”

“The individual in question was interviewed, and when his interview answers weren’t matching up, he essentially admitted it,” Grant County Assistant State’s Attorney Todd Schwarz told the Times. “The one that tipped it off — he painted on the house, ‘BACK IN BLACK,’ and he’s not an AC/DC fan.”

Cobb was arrested and jailed Saturday on charges of terrorizing along with one of his followers, Kynan Dutton, after Leith residents called 911 to complain the men were threatening them with guns.

Cobb sent the Bismarck Tribune a text message before that arrest explaining his actions: “Because of the many violences and harassments against we and the children, we have commenced armed patrols of Leith.”

Schwartz told the Times that Cobb and Dutton “had a falling out” with the other supremacist the day Cobb’s DNA test results were revealed. Since Schwartz thought Cobb knew his fellow supremacist targeted him, the prosecutor said, the armed patrol was a “manufactured” excuse to harass Leith residents.