There are lots of scenarios, and there are people who have the duty to investigate them and to act on the basis of the evidence they find.

We aren't those people. It';s not our duty ti rush to judgement, and we don't have the facts to enable us to do so responsibly. Clearly the parents acted foolishly in leaving their children alone, and that should be a lesson to all of us. But that's as far as it goes.

The quote "Let him who is without sin cast the first stone" comes to mind.

Still, I suppose there are those who would feel that this would entitle them to start pitching stones. Selective memory of the mistakes we have made ourselves is a wonderful thing...