They called him “Valhalla.”
But it was more than a nickname.
For more than five years, Hal Turner of North Bergen lived a double life.
The public knew him as an ultra-right-wing radio talk show host and Internet blogger with an audience of neo-Nazis and white supremacists attracted to his scorched-earth racism and bare-knuckles bashing of public figures. But to the FBI, and its expanding domestic counter-terror intelligence operations in the wake of the Sept. 11 attacks, Turner was “Valhalla” — his code name as an informant who spied on his own controversial followers.