David Boyd 
Aftermath [EPUB ebook] 

Paul is 15 and a survivor. His psychiatrist believes he can help Paul deal with the terrible images he has locked inside his mind in the aftermath of his best friend’s shooting rampage in his high school. Writing in his journal, Paul’s struggle to make sense of what happened reveals the depth of feeling in adolescent friendships, the far-reaching effects of angst and anger, and the havoc caused by a friend’s betrayal.