Reid Forgrave, author of "Love, Zac: Small-Town Football and the Life and Death of an American Boy." Zac Easter was a young man who loved playing high school football. Unfortunately, he suffered a series of concussions that ultimately caused him to develop CTE (a serious brain disease) - and at the age o 24, he committed suicide. He left behind him a revealing journal and other written accounts of his experiences in the hopes that others might benefit from knowing his story.