Way back yonder while I was in high school, I happened to see a painting of a baby lying face down in a crib, its arm extended through the bars of the crib (this was before bumper pads) and its hand missing with blood dripping from the stump. (It was an amateur sentivity-raising painting.)In the background was a large rat. I have never been able to get that image out of my head and this just brings it back vividly, only worse. I've never even seen a sewer rat in real life. This is the stuff of nightmares. Should the parents have known rats were around?
I find it hard to believe that the baby wasn't screaming in pain as the rat attacked her.
I think the parents should have been aware of the infestation, rat's don't typically eat people out of the blue to the best of my knowledge, but that does nothing to help the child afterward.