It happened around 4 a.m. Sunday on Montauk Highway in Lindenhurst.
Police say 30-year-old Lita Davidson was intoxicated when her car veered off the highway near Shore Road.
Her car slammed into a pole and hit 40-year-old Robert Vitale.
He was pronounced dead shortly after the crash.
Davidson was not hurt.
She is set to be arraigned later Monday in Central Islip.
ALSO READ: Suffolk County warns of police cuts without federal relief
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