I read this story earlier today - I thought it was a link from one of the autism-spectrum topic blogs I follow, but none of them appear to have been the actual source. The story is about Nate Tseglin, a kid who was apparently a successful, bright, happy kid who happened to have Asperger's. When he ran up against some road blocks in school - inappropriate class offerings, lack of sensitive counseling service, and so on (problems with which I'm only too familiar, even if I don't have Asperger's) - he started having problems with impulsive behaviors. The solutions he devised (such as a system of soft restraints which he would request to use when he felt like scratching himself, approved by his doctor) were unpalatable to the school; a teacher reported them to Child Protective Services.
What happened after is a complete failure of common sense and state restraint. Rather than repost the entirety of the history, I encourage you to go read it at Get Nate Home. Excerpt:
Step one: make enough noise that they can't get away with this. I'll figure out step two when I get that far.