Sean P. O’Keeffe, beloved son of Rebecca (Karl) Quinn and John (Megan) O’Keeffe Jr.; loving brother of Ian and Kathleen Quinn; dearest grandson of Roland and Mary Steinhauser and John Sr. and Patricia O’Keeffe; adored great grandson of Francis and Lorraine Lococo; fond nephew of Phyllis (Rodney Sweet) Steinhauser, Katherine (Mike) Erhardt and Mary (Kevin) Karl; cousin and friend of many. Sean was a talented drummer and artist and will be missed by all that knew him. A Memorial Mass will be held Saturday at St. Bernadette Church, 9343 S. Francisco, Evergreen Park.