Dr Phil noted that there were many witnesses of them both at the school that morning, so the mystery is if the boy left with her and if not with her who. 
A 3rd grade girl was abducted from the King School stairway in Portland back in 2004, and I think another 3rd grader in 1992 so that is a real possibility. 
She did fail two polygraph tests so I'll be interested to watch part 2 of her interview.