The school should be involved in this. At his age, while what happens at home is important, its about what the school is doing. Is there a study team involved? Has he been evaluated or tested for learning difficulties? What is the school doing - besides failing him?
Was his father like this also? The reason I ask, is the greatest determiner of antisocial behavior in a boy, is antisocial behavior of the father. It's a very clear genetic link.
Does he have any men in his life he can count on to be there for him?