care of kyron.wo years ago, kyron's mom and dad had a little daughter. would there be a resentment toward the 7-year-old child who is not your flesh and blood you have to take care of? i have to stress, everybody that's been interviewed said she seems like the model step parent, she was very involved in the school. and she doesn't have any history of any kind violence. she has one dui on her record. this woman has a master's degree in education. >> the biological mother, did she remarry? >> yes, she's married to a detective, which is also an interesting twist, considering everything that's gone on here. it's a fascinating mystery, because these two couples seemed close until this happened. >> larry: mark, you've investigated, have you ever heard of a stepmother harming a young child? >> oh, sure that can happen. i'm sure that's happened many, many times. i believe in cinderella, the fairy tale where that happens. i'd like to address the whole idea of advocating for your child publicly, though. the f