ATLANTA, Ga. (Atlanta News First) - The man accused of threatening to shoot up Hartsfield-Jackson Atlanta International Airport pleaded not guilty to federal charges Friday.

RELATED: Man accused of planning shooting at Atlanta airport in federal custody; indictment reveals new details

Billy Cagle faces federal charges of attempted violence at an international airport, interstate communications containing threats to injure the person or another, and being a felon in possession of a firearm.

In Georgia, Cagle is charged with terroristic threats, possession of a firearm during the commission of a felony, criminal attempt to commit aggravated assault, and possession of a firearm by a convicted felon.

Those charges remain pending.

Federal prosecutors claim Cagle planned to carry out a s

See Full Page