When Fettel was 10, she merged her own consciousness with his, causing him to go berserk and murder several people. When the telepathic link between them was discovered, they pulled the plug on the project and left Alma to die.
(Oh, of course it was cut off. -_-) They were made prisoners inside their own minds and forced to watch as they tortured, killed, and ate people and were unable to stop themselves from doing so. And all this because they took in a seemingly helpless little girl. No good deed goes unpunished, after all.
