I am sure this girl new it was wrong unless she was mentally challenged...
That being said ... I could easily see a 14 yo who is normal not having the patience to handle a young baby. Especially if her own parents do not set an example of patience in the home.
I don't think the 14 yo would know or realize the damage that could be done to an infant by shaking them.
Something else stands out to me as well.....
"The child keeper did tell them that an accident happened with their child," Copeland said. "So, they knew something had happened, they just didn't know what. And later on, throughout the day, they noticed the child started to become unresponsive and that's when they contacted authorities."
In the course of this scenario ... The 14 yo's parents (or parent) had access to the baby as well as the infants parents.
Are they all trying to make the 14 yo a scapegoat thinking she will get a lighter sentence?