He was arrested and booked into jail, and released on bond. He's been charged with felony aggravated assault. That's the way it would have happened to a civilian too. And this doesn't sound like they're trying to let him off:
"Terribly disappointing," Sheriff Piper said. "It's a betrayal of a trust to the public. We're expected to handle ourselves correctly in high-stress situations, and it's very disappointing that an officer would snap like this. It's a break in judgement that can't be excused."
If they somehow let him off without consequences and give him back his job, then that will be a travesty. They've got video, he was identified by the victim, etc., it looks pretty clear cut. But so far aren't they doing the right things?