Commissioner Loeb (Gillian B. Loeb) is the Police Commissioner of the Gotham City Police Department at the beginning of Batman: Arkham Origins
Can be seen in a press conference at the beginning of the game with Captain Gordon talking about the capture of Julian Gregory Day
Shortly later, Commissioner Loeb is taken captive during when Black Mask organizes a breakout from Blackgate Prison, and is subsequently killed.
Later in the game, when Batman is in the GCPD Building, you can hear that donations are being collected to help Loeb's family.