That mom is freaking nuts. If one of my kids ever did something like that to another human being, he wouldn't make it to trial. How she can defend her son and call it a misunderstanding is so far beyond my understanding...
And wtf were the coaches doing??? Where were they at when a kid was held down, had his shorts yanked off, and a finger jammed up his butt? You cannot tell me they didn't know something was going on back there at the back of the bus...absolutely disgusting.