You have killed your parents years ago for abusing and hurting you and the people that hurt you, you kill. one night you're in your kitchen and you hear a thud. you turn around and you see Jeff the Killer looking at you he said in a deep voice

"My name is Jeff. Jeff the killer. Slender sent me here to retrieve you I guess. Your living with us in the Slendermansion. So follow me. If you can't keep up, well, too bad."