My freshman year I got accused of stealing a $10 CD player that belonged to another kid. I didn't do it, but our guidance counselor and principal turned a molehill into a mountain by locking me in the office and interrogating me about it. Anything I said would further convince them I was guilty, they even called my mom to ask if the cops could come search my room. Ridiculous stuff, but basically goes to show you that there's not much hope for someone once the people in charge have already made up their minds.
It is very true especially if you are a kid and super-especially if you are a kid that has a few learning issues, which his case clearly is.
For goodness sake the kid that he would just "go home" if he started admitting to all that stuff.