This is a carousel. Use Next and Previous buttons to navigate BUFFALO, N.Y. (AP) — Tirzah Patterson will dedicate this Mother’s Day to the hardest part of a mother’s job, trying to help her child make sense of tragedy. Patterson and her husband had divorced but remained close for the sake of their son. Then Heyward Patterson was gunned down along with nine people in a racist attack at a Buffalo supermarket a year ago Sunday. Tirzah and 13-year-old Jaques “Jake” Patterson recently opened up about coping with immense grief after a mass shooting, an unceasing story across the nation....