14 year old kills her baby

I just read a heartbreaking story. A 14 year old got pregnant and hid it from her parents the entire time. She obviously didnt gain much weight and she even hid it at school. She gave birth in the bathroom, biting on a towel and turned the water on so her parents wouldnt hear her in labor. 
She picked the baby up, checked him for a pulse, then strangled him to death. She then hid the baby in a shoe box. Days later, her mom found the baby. Her mom is in denial and in the video, the girl explains how she killed her son, very calmly, wasn't upset and referred to him as an "it" 
She wont get much time in jail because she's 14, she'll probably just go to a juvenile center until she's 18, or 21. 
I think this is crazy because she murdered her child because she didnt want to disappoint her mom. I believe 100% she should spend life in prison for that. 
What's your thoughts?