Very excellent piece, thanks for posting it.
Kerry prolly broke no laws. The gun was most likely never actually transferred, and the thing not being one of his beloved double-barrelled deer guns, Kerry prolly just tossed it in the trash on his way out of the event, so it never left the state. John Fonda Kerry would never be seen in public shooting a common Remington, ferpissake, it just wouldn't do.
(The thought of Kerry crawling around on his belly like a lizard with a double-barrel shotgun trying to "outsmart" a deer is just too comical to resist. Where would he get an Elmer Fudd/Floyd R. Turbo hat big enough to cover all that hair? And is it true that he'll only shoot the deer if it's running away?)