The verdict is in on a Casper man accused of breaking another man's jaw at a party.

A jury found John Knox guilty on one count of aggravated assault and battery.

Investigators with the Casper Police Department say in middle July 2015, the victim and his brother went to an after-party at Knox's residence on the 300 block of West Midwest Avenue.

The victim took a bottle of bourbon to the party to share with everyone, however after the bottle was empty, Knox confronted him saying it was his bottle.

An argument ensued and then Knox struck the victim multiple times with his fist, then the victim and his brother were pushed out of the residence and down a flight of stairs.

The victim's brother told police a similar version of events.

When interviewed, Knox said he had exited the bathroom and saw the victim bleeding.

Knox refused to let officers search his residence, or show them his hands unless they had a warrant, and refused to speak with officers any further about what had happened.

His defense attorney's claim Knox was acting in self-defense when Knox was hit with the bottle first and that police did not attempt to get both sides of the story.

He is being held without bond and will be sentenced at a later date.

He could receive up to 10 years in prison.

Knox is awaiting a trial in July in an unrelated case, where he has pleaded not guilty to one charge of attempted second degree murder, stemming from an incident at Racks Gentleman's Club.