Aftab Khan and his family have lived in the Gillette area for over a hundred years, and a few years back the family opened a mosque there. Bret Colvin started a Facebook page called Stop Islam In Gillette and, after the mosque opened, he knocked on the door during services while a large number of people rallied behind him, some of them armed. The event was covered extensively in the local and the international news. Quickly, the online rhetoric between them grew ugly. But until now, they’ve never met in person.