Unfortunately no matter how well you guard your children, tragic incidents like this will continue to happen. I don't think leaving your kids alone at home is a very savvy thing to do given the times we live in but it isn't for anyone else to place blame. As has been said, I am sure they have blamed themselves enough. Does anyone else remember the little girl who was snatched from her bath while the family was in the house with her? I just think that shows no matter how careful you are, these twisted individuals will take any opportunity.