Tiller deserved what he got. and believe and knowledge can be one and the same. I know God exists. I feel him at work all the time. What the babies would say is "how about a chance to become the next great president, CEO, baseball player, gymnast, musician, dancer, painter etc."
They will never know.
Tiller was a doctor because of his schooling not because of his profession. He was a murderer plain and simple. In the end he was a victim of his own success. His own greed. His vanity. I wonder what he said when he discovered God was real and not happy with him?
Maybe you will find out one day.