Jack the Ripper is a little girl! In order to save his girlfriend, Colin followed an order and bombed a bus. Chased by the police to a dead end, he decided to commit suicide when one little girl showed up and saved him. Who are you? I’m Jack the Ripper, and I will be your spirit servant.
He may have only come within earshot after gerwer let go of Deon? Otherwise it was just him trying to show that he's above the dukes and feel like a big powerful man lol