Sure, its murder, murder in the same sense you've been using it up to this point...this seems a quite the convenient time for you to play semantic games.
Anyway, what was your motive for this sudden 180 focus shift from fetus to mother...if indeed both are simply and equally "separate human beings"?
Smh...not all killing is murder, you do understand that right? Self-Defense is not murder, for example, it is killing in self defense, not out of malice, selfishness, or hatred, but because you HAD to kill.
Why do I need a motive? I'm just going with the flow of the discussion. Abortion on-demand is a selfish act by definition, on the mother's part. You're not going to sit here & tell me it's a heroic act of self-sacrifice for which women should be praised, are you?
Also, I want to address your "tresspasser" question, I still am not sure if you were talking about the baby or the law as the tresspasser?