We dont know that LE is yelling at the parents like that. I am sure they were questioned to no end, and rightly so. Information is needed. At this point, I would be yelling at the parents. They have not taken a part in this investigation at all. If it were not for this web site posting pics of Lisa, I would have forgotten what she looked like because the parents are never holding a picture of her. It called "Deal with it", if you want them to help you find your kid, let them clear the number one suspects in all cases like this. Then the police can move on, in this case, the police to me, are probably staying put because actions speak louder than words and the actions of these parents says guilty. I cannot wait for an arrest.