A madman was arrested after railing against CNN as “fake news” and pledging to travel to the network’s Atlanta headquarters and commit a mass shooting, according to reports Monday.

Brandon Griesemer, who lives near Detroit, was taken into custody Friday after he made more than 20 calls to the cable news network that became increasingly deranged and threatening, according to Atlanta’s WGCL-TV.

“Fake news. I’m coming to gun you all down,” the man told an operator at the network, according to court documents.

He also reportedly bragged about his firearms.