Of Buffalo, NY, entered into rest on October 3, 2026. Beloved best friend and former spouse of Carolyn (nee Smolinski) Costello; devoted father of Daryl (Kevin) McNerney, Donald (Rosemary Kopcho) Costello, Paula (James) Klapp, Delmas J. (former spouse Susan) Costello Jr., and Patricia (late Richard) Czosek; dear brother of Paul (Maureen) Costello and the late Arlene Ippolito; also survived by many loving grandchildren, great-grandchildren, nieces, nephews, family, and friends. Relatives and friends may visit the LOMBARDO FUNERAL HOME (Northtowns Chapel) 885 Niagara Falls Blvd., near Eggert Rd., on Monday October 5, from 4-7 PM. A Mass of Christian Burial will be celebrated in St. Gregory the Great RC Church, 200 St. Gregory Ct., Williamsville, NY 14221 on Tuesday October 6, at 10:30 AM. Interment Mt. Calvary Cemetery.