In N.J. High School Football, a Victory Tempered by Grief

PHILADELPHIA — In a record year for gun violence at high school sporting events, Da’Vion Harper played a football game Wednesday with a somber tribute written on the shirt beneath his jersey: “R.I.P. Micah.” Beneath his helmet, Harper drew the number 10 on one cheek and a cross on the other. Last Friday night, 10-year-old…