At the National Prayer Breakfast the President confidently declared,* "...for the killing of the innocent is never fulfilling God’s will; in fact, it’s the ultimate betrayal of God’s will."
So, surely he's talking about slaughtering millions of innocent, defenseless unborn humans every year. Oh, wait. He doesn't consider them human. My bad.
*Note that the writer at the link was making a different but equally valid point. It's worth a read if you have a moment.