Five days after the deadliest mass shooting in modern American history, Jeremiah Cottle, ashen-faced and unshaven, looks toward the four flags by his company's front gate in Moran, Texas. There's the Lone Star State flag, the Stars and Stripes, a POW-MIA one, and another with the green-and-black logo of his company, Slide Fire Solutions LP . Each flies at half-staff just inside a 10-foot-tall fence topped by razor wire. "My family was always here," he says, motioning across the two-lane highway to the ranch with the Cottle sign out front. "So I built something, and a madman is taking it all away."