Sick story... But my question is what should be done with the little boy?

So I watching the local news and there was a story of a 62 year old woman that was all kinds of fucked up, and really saddening. This woman went into a cell phone store leaving her 6 year old and 2 week old in the locked car with the windows up. Okay that's her first offense. She was in there for 30 minutes!! Who does that?! Anyway, the baby started crying and the 6 year old took her out of car seat and started tossing her around like a rag doll. Finally the mom comes back and the little boy tells her that the baby is hurt. She ignores him. Goes to another store and leaves them again!!! They finally get home and she realizes the baby has died. Weirdly enough she doesn't call the cops instead calls her neighbor who is a nurse!!! The neighbor then calls 911 after discovering the baby is dead. The cops mentioned how weird the lady acted she was putting groceries away and didn't seem very affected. She has now been arrested and the boy is in foster care. He is too young to recieve any charges, but what do you think? Should something be done with his mental health? Also to make this story weirder, yes this woman is 62 years old and the biological mother. She was artificially inseminated with her dead husbands sperm!!!!