In his book, Generous Justice, Tim Keller quotes French deconstructionist philosopher Jacques Derrida as stating the following:
Today the cornerstone of international law is the sacred, what is sacred in humanity. You should not kill. You should not be responsible for a crime against this sacredness, the sacredness of man as your neighbor… made by God or by God made man…. in that sense, the concept of crime against humanity is a Christian concept and I think there would be no such thing in the law today without the Christian heritage, the Abrahamic heritage, the biblical heritage. — Quoted in Generous Justice, 166-167.
Again, as is the case of Nietzsche in a post a few years back, a more articulate presentation of this truth could not have been presented by the most pious of Christian apologists.