Too many people she escaped her fate of madness from her fall, but when she is defeated she retreats in her mind to her time before she danced the Spiral. She may as well not be the same person at all.
Serial Killer? Yep she is one:
A member of law enforcement may notice a lot of people accused or suspected of bad things have began to disappear never to seen again. You want to track down who is responsible I'm up for a challenge if you are.