The 4th homicide charge was expected after a 6-year-old girl injured in the crash last Sunday died early Saturday, a spokesman for the Nassau County District Attorney's Office.
Police charged Gabriel Grande, 30, of East Meadow, with DWI after he allegedly drove drunk westbound in the eastbound lanes of the highway in Sayville.
Michael Deangelo was arrested for the deadly crash in Massapequa that killed 61-year-old Patrice Huntley, as well as his 12-year-old daughter Hannah and his.