OK, then why is it called horrific to kill 20 children in Newtown? Is it because they have already been born? What about you? If someone decided that you were not having a good life...BAM!? Or what of the Nazis? They were doing this also, and they got this idea of Eugenics from groups within the United States.
For those who have decided that it would be better to think of that baby as a "fetus" and therefor not a baby, try leaving it alone for 9 months and see what you get.
No amount of logic can make abortion OK. You are killing an innocent baby. Even one resulting from rape. The only thing that justifies killing another human being is self defense. Unless of course you are one of those people not have a good life. You're not worth it.