The service took place at St. Joseph's Roman Catholic Church in Kings Park.
The 39-year-old Raguso was also a member of the FDNY and volunteered for his hometown department in Commack.
He previously deployed to Iraq as a fire protection specialist with the 106th Civil Engineering Squadron, twice to Afghanistan with the 101st, once to the Horn of Africa, and to Texas and the Caribbean for hurricanes Harvey and Irma.
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