If the being is on the path to autonomy, then it's alive. A fetus may not yet be to the stage of "alive"- but, without interference, it will BECOME alive eventually. So, abortion is still an act of ending a human life. No different then setting a bomb under a car and then waiting for someone to set it off by turning the key. It's a murder-on-delay.
No different than if I were building a house, and someone else came along and destroyed said partial building. Someone still destroyed MY home. Abortion is nothing other than murder in cold blood. Now, there exists arguments for justifying murder, even the murder of a helpless victim, but there is no reasonable way to say it isn't murder still.
