Midafternoon Thursday, Roane County deputies responded to a home on the 4100 block of Harriman Highway for two subjects fighting and a threatened stabbing.

The victim claimed while he and his grandparents were watching television in the living room, his nephew, 19-year-old Gavin B. Dumont, was in the next room fighting with his girlfriend.

The grandmother went into the adjacent room and told Dumont to quit fighting with her.

Dumont reportedly began screaming at the grandmother and said she didn’t need to be telling him what to do.

The victim said he got up, put his finger in his nephew’s face and told him to quit yelling at her. When he walked away, Dumont grabbed his uncle in a head lock and started to hit him in the head and in the face, bloodying his nose and injuring his knee.

Dumont and the victim continued fighting through the living room and into the kitchen, where Dumont grabbed a butcher knife and threatened to stab his uncle. The scuffle continued down the hallway to the back door, where Dumont gave up the fight and left.

Deputies saw blood in the home, consistent with the victim’s statement.

Dumont was arrested for aggravated domestic assault and taken to the Roane County jail.