into the church george tiller attended, he walked in on a sunday morning, he held up a gun to tiller's head and he executed him at point-blank range. according to the killer, scott roader, he'd been thinking about killing george tiller for years. but it was the result of that trial, george tiller's acquittal of all those misdemeanor charges that motivated him to actually go through with it, to actually do it. >> it seemed like that was the last attempt by the state of kansas to find if there was anything at all going on illegally in george tiller's clinic. and it seemed as though that was the last step and now he was acquitted. found not guilty. >> did you decide it was incumbent upon you to do something? >> there was nothing being done, and the legal process had been exhausted, and these babies were dying every day. and i felt that if someone did