There's also a lot of "WHY AREN'T YOU FOCUSING ON THE MOTHER?" whataboutism in the comments, which I find appalling. The article was about something else, and who knows what her circumstances were.
They should be focusing on everyone connected to the family if known. It would be negligent not to.
The confusion came from the way the article was written. They didn’t know the identity until afterward.
We can react to the fact that mothers can do more to protect their children from abuse in many ways. We can give them better access to information and support in getting away from abusers. We can create better links between police and communities they serve. We can create more pathways for children to be exposed to healthy adult behavior and connections with healthy adults, even when the family is dysfunctional.
But when we find evidence that existing supports have failed, deeply investigating why is critical.
> She said at the point Homeland Security ended her abuse she had been "praying actively for it to end".
You can provide your plausible suggestions as to what the family relationship looked like that the girl could neither ask her own mother for help nor was her father there for her.
> But it was estimated that from 30% to even 80% of victims do not purposefully disclose their misuse before adulthood.
[...]
> Arata found an inverse relationship between the disclosure and severity of abuse. Subjects reporting contact sexual abuse were significantly less likely to disclose it than those reporting non-contact sexual abuse.
> The duration of sexual abuse has a significant impact on its disclosure – the longer children are abused, the more hesitant they may be to disclose their abuse.