PITTSBURGH — Pittsburgh police say former lightweight boxing champ Paul Spadafora stabbed his brother during an argument then fought with officers who intervened.

Police say Spadafora stabbed his brother in the thigh Wednesday night, then fought with officers.

Spadafora allegedly threatened police telling his mother, “Get all their names. I know they have to live in the city. I’m gonna kill them.” Police say they used a stun gun on Spadafora after he attempted to throw something at them.

Spadafora was jailed overnight on charges including aggravated assault and terroristic threats.

His attorney, Phil DiLucente, says the holidays are “emotional for families” and that he’ll comment before Spadafora’s preliminary hearing on Jan. 4.

Spadafora served prison time for shooting his ex-girlfriend.