Young Braeden is a kid from a mixed marriage as am I for that matter. But Hassidic Jews don't favor mixing of any kind and the squad is first thinking it was a custody battle. But in the end it turns out to be another kid and it looks like that other kid Alexander Gould favors both sexes for his molestation.
The multiple victims make Diane Neal want to charge him as an adult. But looking at this kid he clearly doesn't warrant it. Why Neal was so bad about this one defies explanation and the show doesn't give it. Even Christopher Meloni thinks this one belongs in family court.
The show's story defies also logic and reason. There are shows and in real life we've seen kids born without conscience or empathy. But this was not one of them.