[KappaKittyCat]

When I was teaching, I had several students with Asperger's. We always had to watch out for them; whenever other students asked the AS kids to do something, the AS kids thought that their fellow students were "trying to be friends" (as one of my AS students put it). The AS kids have a problem understanding the difference between right and wrong. They're aware of their differences, and at the age that these girls were, there is a certain amount of wanting to fit in. So in this situation, I'd look into the AS girl's partner in crime. My bet is that it was her idea.