Jack or Toby ?

  In these last pages of reading we see that Jack changed his name to Toby. At first I was wondering why ? But the. I thought maybe because it's a lack of having a father figure in his life . Also he says he wants to start new. Also when he wa at  his new school, he was aiming the bow at the other kid. At this moment I felt bad for him. Because he felt bad for the rest of the day. Then he started skipping class and not evening showing up. I feel in the pages to come Toby's going to be going on a up and down hill with his emotions.