I found Brennan's initial reaction to the little girl really nasty. There is no evidence that the girl was in control of anything. If she hurt someone, no one knows if it's self defense. Brennan immediately starts treating here like she is a piece of evidence. Of course, at some point she has an epiphany and realizes how fragile. Even if she is the killer, she is wholly traumatized. Once we get past that, the forensics team starts to put together who she is and find the real perpetrators. Ultimately, he insights of Sweets and Brennan are critical to breaking through the barriers and defense mechanisms of the girl. This was stretching reality a little. Oh--and is that baby ever going to be born before Hodgins ends up in a rubber room?