Man accused of planning mass shooting at Atlanta airport pleads not guilty to federal charges

The man arrested at the Atlanta airport after his family reported he had threatened to shoot up the terminal is pleading not guilty to federal charges.Billy Joe Cagle, 49, appeared in court on Friday for a hearing where he made his plea.Atlanta police arrested Cagle in Hartsfield-Jackson Atlanta International Airport's South Terminal on Oct. 20, after his family alerted the Cartersville Police Department that he threatened to "shoot up" the airport on a FaceTime call while driving, abr