It seems silly to me to respond with**** “Maybe he was so close to it, the Devil sent his minion Scott Roeder to act fast before Tiller could change his mind.”***. If one is going to indulge in “Maybe” Maybe God just figured the man had enough time to repent, and He just let this happen.. "maybe" God figured enough killing of His children,
I posted speculation, which is just my own opinion. God always warns before calamity. He sent Alveda King to try to change George Tiller's mind.
The article did say he was gunned down outside of a Church where he served as an Usher though. He had plenty of opportunity to change his mind and repent, anytime.
Whether God or the Devil sent his killer to him, or as the Buddhists say, his bad karma finally came upon him, is neither here nor there now. He's dead to this world, and he can't abort another baby again.
Where he is now is anybody's guess. My guess is Hell where all unrepentant murderers go.