Who Am I Here?
He's handy around the house. He likes to spend time in his basement workshop, where sometimes the pressure builds up so intensely that he has to smash things. He's obsessed with a vision of the perfect family. He wants each of his families to be perfect. When they disappoint him, as every family eventually will, he starts shopping around for his next family and his next identity. When he has that lined up, he murders this family.