I have great respect for Natalee's mother, and I hope I would be able to handle myself with as much energy and composure and grace as she has, were I in that awful situation.
However, Natalee's mom is under huge stress. Hardly in a situation to make rational judgments about things.
I'm a mom too and have also been in terrifying situations involving my children (including a life-threatening one); and looking back, I can see that I was very wrong about some things I was very certain about back then.
I'm a mother and grandmother too. I'm still going with Beth's instincts. She saw him in person.