She was the seventh-grader too frightened to stand in front of the room because her white classmates would mock her, contorting their mouths to make their lips look big. She was the smoldering teenager who took to writing poems every day to wrestle with her isolation and anger. She was the eldest daughter of one of the only black families in Longmeadow, Mass., who arrived home to see their new house scrawled with racist graffiti.