This is an idea I had way before I was even known as bigboomer on deviant art. She has been fused in with a dark force that makes her do things she never intended and makes her thoughts into a reality whenever she is in great rage and sadness and need of revenge. Like Lucy from elfin lied when she murdered 2 kids for killing her dog and bullying her so bad. Laura had always had bad thoughts but never done them before but not that she possess a that dark energy, it takes over whenever she gets enraged and kills off the bad people, only to snap out of it, realising what she did and regretting everything. So here she is finally caught and jailed after many years of hiding and accepting the death penalty