Brahms Heelshire

He is the son of a wealthy family called the Heelshires and a serial killer. His parents faked his death to protect him after he killed his friend when he was 8, leading him to live in the walls of the home for 20 years. His parents left Brahms with a "nanny" as a parting gift so that they could kill themselves while making sure he was cared for. He occupied himself by stalking his nanny Greta, moving the doll (that was supposed to portray him as a child) around the house.