[From many - one.]

If the parents were "right outside" why didn't they hear the baby screaming in pain from being hit?

[stormyseas]

exactly....you know there is always more to it, then meets the eye.

[HungarianGypsy]

If the parents were "right outside" why didn't they hear the baby screaming in pain from being hit? Was just stating what the article said. Outside with neighbors usually means not too far from the house.