KACZANOWSKI - Mark J. Of South Buffalo, NY, January 20, 2023. Loving son of Christine Nestor; nephew of Stanley (Ginger) Nestor, Shirley (late Ronald) Nestor and the late Mary Ann (Edward) Pantano; survived by beloved Godchildren, Elise Velau, Matthew and Joshua Nestor; also survived by many loving cousins; grandson of the late Helen and Michael Nestor. No prior visitation. Family and friends are invited to attend a Mass of Christian Burial at St. Thomas Aquinas Church, 450 Abbott Rd., South Buffalo, NY, Friday, January 27, 2023 at 9:30 AM. Memorial contributions may be made to Cancer Care Center of WNY. Arrangements by: CASTIGLIA FUNERAL HOME, INC., 873 Abbott Rd., South Buffalo, NY, (716) 824-6435. Please share condolences at: www.castigliafuneralhome.com