Bull, re: "A few weeks later, she showed up at her husband's home with her hair dyed blonde and claimed that 'Robbi' had died and that she was her twin sister, 'Teri', a deception he unbelievably fell for." That's Soap Opera 101.
There is a TV movie on that... very nutso lady... can't imagine someone trying to kill their own daughter to have money to buy clothes and stuff... very sick.