Two male juveniles, steal another students textbook (victim does not realize it is missing). They proceed to shoot and cut the book up. They also list the names of several girls that should be sexually tortured and how they will do it. The offenders then leave the book at the school for officials to find. Of course, the victim/owner of the book is blamed. The victim/owner of the book confesses easily that he wrote the offensive material and destroyed the book. In the meantime, word gets around the school that the two creeps just did this to get the victim/owner of the book in trouble and so that everyone would think he is a sicko. The SO then further investigates and the two offenders own up to it. The victim/owner of the book then states that he had a good idea of who did this to him, but the fear of retaliation was great and he was going to take the blame.

Now after all is settled, is there anything more than "criminal mischief" that we can charge against these two bullies?

You might consider false report. TPC 42.06; In re B.P.H., 83 S.W.3d 400 (Tex.App. -- Fort Worth 2002, no pet.). That would be a SJF.