Board Thread:Dark Souls/@comment-98.28.88.47-20130819010743/@comment-4526779-20150626014007

It's pretty clear that he killed Anastacia for her humanity, the game states that Firekeepers have a large mass of humanity writhing in their bosoms, and Lautrec makes a statement about how some people have "more humanity than they know what to do with", followed by a "Keh heh heh heh heh..."