So if a someone is entering into my house, I'm not in imminent danger?
An abortion clinic is not your house. An abortion clinic is Tiller's private property. Walking to it at best would be public property (assuming he parked outside and used the sidewalk to get there ... which they don't).
Plus the baby has not arrived. You could save the baby through other means besides killing the abortionist, including talking the mother out of the abortion.... that alone dispels the notion of self-defense.
And none of this was at an abortion clinic. It was on a Sunday.
I'm only in imminent danger when he pulls the trigger on the gun? The court system would disagree, as would most reasonable people.
Even if someone was trespassing on
your property, which is different than the scenario you listed before, you do not have the right to shoot them necessarily. The courts have been clear that you can't just gun down someone on you property with immunity. You still have to prove you were in danger, or thought you were. And in some states it is still manslaughter.
What do you suppose Tiller's intent was as he walked into his abortion clinic with schedule abortions?
He walked into a church. Do you mean in your hypothetical situation, what do I think he thought? I imagine he "would think" that he was going to make some money killing kids today. That doesn't make it self defense.
Would you call a baby a hostage in this situation?
You are seriously arguing that being a pregnant mother is a hostage situation?
Do you think you can shoot a pregnant mother who is about to light up, sip some wine, or do crack?
Do you really want this to be your argument?
Really? Why don't you cite a legal definition for me.
Good heavens ... you actually need someone to cite one?
http://www.lectlaw.com/def/d030.htm