(W) Andersen Gabrych (A) Pop Mhan (CA) Amanda Conner. Written by Andersen Gabrych Art by Pop Mhan & Jesse Delperdang Cover by Dustin Nguyen Batgirl needs to know who her mother is and there's only one person with that information. Unfortunately* he's her estranged father as well as one of the world's most notorious killers: David Cain! Don't miss "Father's Day!"