system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] So why are they called The Arkham Knight?

Forgive me, as I couldn't play the game, but I'm confused. I know the Arkham series take pride in the Arkham name (Aslym is the setting; City is the setting and evolved from Asylum's destruction; Origins is just, well, the origins of this AU), but why is the antagonist named Arkham Knight?  


What does he have to do with Arkham?  
Likewise, I heard the character was adapted in the comics. Why does it have that name?
gpt
The reason in universe is cause they were born in Arkham. Joker kidnapped Jason Todd and tortured him for a year in an abandoned wing of Arkham Asylum, so he took the name to mark his feeling like Batman abandoned him.