Newtown – Memorial Service to mark the third anniversary of Sandy Hook, which took place on Dec. 14; led by Rabbi Reuben Modek of Nyack, NY., spiritual director of Hebrew Learning Circles, a synagogue without walls; part of Friday night service which begins at 7:30 p.m., followed by Oneg Shabbat; Congregation Adath Israel, 115 Huntingtown Rd., (203) 426-5188.