I have to disagree with spikey here. There is a clear reason Eli isn't talking and it has nothing to do with making it worse for himself. He is in love with Chase and has witnessed, with his own eyes, Joey's hold over him. If one thinks Joey is going to be taken away to rot in jail, no matter what the evidence, for one teen beating up another, that person lives in a different world. It is genuine concern for Chase, who is powerless to come to his own defense. That other world must also contain 15 year old boys who trust and talk to adults. Doesn't happen in this world and never has. Ever.