Two young girls kidnapped from Tennessee have been found
. Adam Mayes, the man accused of taking them -- and killing their sister and their mother -- is dead. According to the FBI, he took his own life.
has been in touch with the girls' father and joined Natasha Curry
on Morning Express
. She has learned that for years, Mayes has insisted that Alexandria and Kyliyah Bain were his biological daughters. But their father tells Nancy that they are not and that delusion was what drove him to kill their mother and their sister.