breaking news
According to cops ... the suspect is Dominick Diorio ... a 40-year-old from Long Island -- and he's been charged with third degree assault as a hate crime and harassment.
As we reported ... Stiviano claimed 2 men jumped her Sunday night outside the Gansevoort Hotel in NYC. Her attorney says the men punched her and hurled racial slurs.
ABC first reported today's arrest.
As far as the 2nd suspect is concerned -- NYPD says its investigation is ongoing.
