That's what I'm thinking too. Do you remember hearing about Joran having to take anger management classes? Palladin mentioned it in his post #425 and I'm wondering if it is a fact or a rumor.
I think it must be true. Wasn't Mama asked that by Greta, and Mama replied that J was upset a lot that Papa had to be away at judge school or something, and he was angry.
In a comment up above somewhere, someone posted that J threw someone through a window at school, just the week before N went missing.