What is the main conflict in Bone in the Throat by Anthony Bourdain?

Bone in the Throat by Anthony Bourdain is the story of a mafia boss and an attempt to bring him and those who work for him to justice. Tommy Pagana is the nephew of Sally Wig, a murderer and extortionist. Tommy doesn't want anything to do with the crime world but gets pulled into the middle of Sally's "business". Tommy is busy trying to keep Sally's friends from killing him, due to what Tommy has seen, when Tommy is approached by the police with threats of prison if Tommy doesn't help them by ratting out his uncle.