Editing Man-Bat (section)

===Abraham Langstrom===
Back when Thomas and Martha Wayne were still alive, Kirk Langstrom had a father named Abraham whose company, Patriarch Biopharmaceuticals, competed with Wayne Enterprises. Years after the death of Thomas and Martha, Abraham continued his shady deals, which involved exploiting his son's Man-Bat serum which he planned to profit from. He soon became addicted to the upgraded serum. When he became a Man-Bat, Abraham targeted the homeless people of Gotham City, draining them of their blood. This caused Batman to team up with Kirk Langstrom to fight Abraham.<ref>''Batman: The Dark Knight'' (vol. 2) #28. DC Comics.</ref> Because the skin of Abraham's Man-Bat form was tough, Batman injected himself with the cure and tricked Abraham into drinking his blood enough to transform back to normal. Batman then handed Abraham over to the police. After evading incarceration by claiming that he had no knowledge on what his Man-Bat form did, Abraham returned to his company, though he was wary of the fact that Batman may catch him if he ever makes a mistake.<ref>''Batman: The Dark Knight'' (vol. 2) #29. DC Comics.</ref>