The Arkham Knight has been hunting Batman, and we now know why. 1 / 8
We previously learned the Arkham Knight had ties to Jeremiah Arkham. 2 / 8
As it turns out, she was his daughter. 3 / 8
Batman and Robin interrogated Dr. Arkham to learn more. 4 / 8
He revealed he fell in love with a coworker named Ingrid Karlsson. 5 / 8
She was killed by a Batarang while giving birth to Astrid. 6 / 8
It wasn't thrown by Batman, but Astrid's mind had been corrupted by Arkham's inmates. 7 / 8
Dr. Arkham also lied to her about that night, fueling her hate for Batman. 8 / 8