They took Epperson to jail to talk with him about a broadcast for assaulting an officer earlier that month, and he started yelling, cursing and squaring off with another officer at the scene, McGahan said in the court document.

"(He) became increasingly volatile and threatening," he said. "(He) then became even more agitated, was pacing, clenching his fists and was even hitting his fist against his chest."

Epperson told an officer to "get your phaser out," which McGahan said he interpreted as Taser, and pretended to charge McGahan. When officers put their hands on him, he threw them off and knocked an officer off balance, he said in the affidavit.

McGahan said he and another officer took Epperson to the ground, but he tried to buck them off. During the struggle, Epperson dug his fingernail into McGahan's middle finger, drawing blood. He drew blood on the other officer's finger as well, McGahan said.

They eventually subdued and handcuffed him before taking him to a cell.

That's when McGahan shoved him and Epperson fell forward and hit his head on the wall, leaving blood, McGahan said in the affidavit. He didn’t mention in the affidavit that he pushed the man, who required treatment at a hospital.