Society dictates what is right/wrong, immoral/moral, legal/illegal.
right now abortion is legal in our society. So do you set your standards to society or do you make your own? And if you make your own, what sets you apart from others that make their own.
Tiller's killer made his own standards on what should be legal/illegal against society. So if Tiller's killer is rewarded, than why shouldn't others that have differing vies on what should be illegal/legal?