the parent would lie for the child but also because the grand parent that loses the grand child has to face their own conscious of why did the child die on your watch? >> so they will blame themselves and therefore protect their daughter? >> would a parent adopt a false story to help a child under these kirks? >> no. >> yes. >> no. >> yes. >> let me go to you, rod. she is 22 years old. the police are interrogating here. >> right. >> she goes toe to toe with experienced detectives. have you ever seen anything like this? and let's look at the interview before you answer the question. this is when the police interview here as part of the missing child investigation. take a listen. >> the last time that i saw her was on the night of june -- >> and what happened to caylee? >> i don't know. >> sure you do. >> i don't know. >> something happened to caylee. wthe last time you saw her. you haven't seen her so that part is throug true you haven'n