Someone please explain

I was flipping through the paper this morning and stumbled across this article that I haven't been able to stop thinking about all day:

"A newborn tossed down a housing project's trash chute survived the eight-story fall because he landed on a pile of garbage and the compactor was jammed, investigators said Monday.

A maintenance worker heard a baby boy's cries coming from the trash compactor in the Walt Whitman Houses on Sunday morning. The child was taken to Brooklyn Hospital where he remains in stable condition, said Jerry Schmetterer, spokesman for the Brooklyn District Attorney's office. He said the baby did not appear to have been injured in the fall.

Laquasia Wright, 18, was arrested on charges of attempted murder and endangering the welfare of a child. Police said it appeared Wright had given birth shortly before tossing the baby. She was also being treated at Brooklyn Hospital on Monday and it was unclear when her arraignment would take place."
-Associated Press May 24, 2011

My jaw had dropped while reading this article and I sat there thinking, "Here we are, wanting children, and people are literally throwing them away." Even though I know the answer, I still had to wonder, "why, where is the justice?" This is actually the second case like this in the the past month. The other baby was found in a hospital restroom in Queens.