This is a very sad story.
Here is original article when she left the baby in the subway. Her mother states she was never the same after seeing her boyfriend shot dead while she was was pregnant. She was hiding under a bed.
http://abcnews.go.com/US/woman-rescu...ry?id=24492365
And today's article:
http://m.stltoday.com/news/local/cri...a28aed611.html