I have no idea what their intention was- other than, obviously, to cause serious harm. I genuinely have no idea if they meant to kill her or not. And as it was around a month later that she died, it was probably hard to prove they did.
I remember a case where a driver was jailed (I think for life, but not honestly sure) for killing a 3 year old girl. He was not drunk, on drugs or speeding or otherwise driving carelessly, but went around a blind bend and hit a child in the road.
There seemed to be no thought about why a 3 year old was in the middle of a road on her own or the parents responsibility, or that he had no wish whatsoever to harm anyone... he was punished purely on the outcome.
And yet, people can make deliberate attacks and not be punished, purely because they failed. It is quite irrelevant here, but it is just odd.