Tthe shortest version is the girl had an attitude, and it caught the attention of the wrong people.
Part has to do with the fact that it's summer, and there are "summerf(riends)" who act stupidly, and seem to leave when the school/university terms start session again. It explains partly why people were messing with an eleven-year-old girl.
Any way, it was apparently easy for her YouTube account to be associated with her FaceBook account, and shortly thereafter her home address was found, as was her school.
What most media outlets did not cover, however, is that the girl had been exposing herself in video chats. There are recordings and screen grabs floating around of some of these incidents. There are also screen grabs and chat logs, possibly video evidence, of the girl bragging about her sexual activity as well.
The images and at least some chat logs were then sent to her parents, facebook friends, and at least some school faculty. That's about when the girl made her tough face video. Apparently she had convinced her family it was all lies.
This further enraged some people, as that is when all hell broke loose. The phone calls began, there were some prank calls (knowing the right search terms will lead to youtube videos of an apparently young male making a call posing as a police officer), and such. Supposedly in all this mess, or what came before, her parents defended her right to have been exposing herself, or denied that she ever would.
Basically, the novelty has already worn off, the few people who post on /b/ about it have largely moved on, and now the media is picking up a week old story.
The police have also been notified, with censored images, of the girl posing on her web cam. They initiated an investigation about why her parents were allowing her to strip for strangers.
Her parents have claimed they let her do anything online because they thought she was posing for "America's Got Talent." The partial nude stuff and skirt lifting wasn't mentioned, but that is the closest to a direct address of that which has, at this point, been given.
I am not condoning the actions of anyone; it's the great thing about Anonymous: It's not an organization. It's individuals. And one news report said it best: It's not the site that did it, it was the kids.
A bit more direct version of the story can be found here:
http://encyclopediadramatica.com/Jessi_Slaughter
