Hertzberg said Cagle was on a FaceTime call on Monday when he allegedly threatened to "shoot up the airport." The airport Cagle was referring to was Hartsfield-Jackson Atlanta International Airport. MAN ARRESTED WITH FULLY LOADED AR-15 AND KNIVES OUTSIDE PALM BEACH AIRPORT FREQUENTED BY TRUMPWhile on the call, Hertzberg added, Cagle allegedly stated, "I’m at the airport, and I’m gonna go rat-a-tat-tat," before abruptly ending the call. Cartersville also provided Atlanta police with photos of Cagle and a description of the Chevrolet pickup truck he was reportedly driving. 'TRAGEDY AVERTED' AT ATLANTA AIRPORT AS POLICE ARREST MAN WITH AR-15 ALLEGEDLY THREATENING TO 'SHOOT IT UP'Officers canvassed the area and issued a "be-on-the-lookout" alert for Cagle and his Chevrolet flatbed pickup truck.