Hi,
I'm a local, and personally know AB. We're in the same class, and I've been going to school with her since we were 12. I makes me really sad that she could've done something like this, and makes me rethink my judge of character.
Something I'd like to clear up is that she has seeked help for mental issues in the past. She dresses "emo", but hasn't really shown any outward signs of depressions since two years ago.
When she was around her friends, she was very happy, and bouncy, and open, and I have never witnessed her being a bully. Ever.
There are tons and tons of rumors going around our school, yet none of them contradict another. I'd like to post some of them, but being simply rumors, i can't.