CITY ON FIRE by Don Winslow

In a novel about the Rhode Island mob in the 1980s (who knew there was such a thing?), I don’t mind wise guy grammar in the dialog, but the author applies it inconsistently in the third-person narrative as well.  For example, on page 3, we have “what he doesn’t know,” but then on page 5, there’s “He don’t have it in him to cheat.  She don’t mind he looks at other women… .”  I found these choices disconcerting, but this novel still works, if you don’t mind a high body count.  A turf war develops between the Irish mob and the Italian mob, after a long period of uneasy détente.  Marty Ryan’s alcoholism has forced him to yield his power position on the Irish side to John Murphy.  Marty’s son Danny, the protagonist here, is married to John Murphy’s daughter but has never earned a seat at the table.  With a baby on the way, Danny is tempted to take the Feds’ offer to rat out the mob on both sides and get out.  The question is which “family” deserves his loyalty, given that he thinks of Pat Murphy as more of a brother than a brother-in-law.  Unfortunately, Pat’s brother Liam has a propensity for igniting powder kegs.