(CNN) -- A 40-year-old man who allegedly punched and shouted racial slurs at V. Stiviano outside a Manhattan hotel was released on his own recognizance Wednesday as prosecutors investigate possible hate crime charges against him. Dominick Diorio allegedly followed Stiviano -- whose audio recording of Donald Sterling ranting against African-Americans led to his NBA lifetime ban -- from a restaurant to a hotel and taunted her with racial slurs, according to a criminal complaint. When she got into a cab with companions, the complaint said, Diorio "reached through an open taxi window and struck her in the face with his closed fist," causing swelling, redness and pain in her right cheek.
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Suspect in V. Stiviano assault released on his own recognizance
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Dominick Diorio turned himself in to police, NYPD source says, and later was ID'd by Stiviano
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Police had spoken to the Long Island man the night of the alleged attack
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V. Stiviano says two men yelled at and hit her
According to the complaint, @placeholder swung his fists at her, saying, "Yeah, I'll f**king hit a girl.
@placeholder was arraigned Wednesday on a charge of third-degree assault and prosecutors agreed to his release pending an investigation of hate crime charges.