At the end of the game, Jack ends up killing the corrupt mayor, another crime lord named Fahook Ubduhl, and Hennessey. Although he says this would unlikely end crime in Grant City, his actions created a power vacuum that'd cause the other criminals to fight for power. However he loses interest in clearing crime in Grant city and fakes his death before facing off against Hennessey.
- He had two love interests, Hildy Razwell (unrequited on her part) in the first game and Ruby (actual girlfriend) in the second game.
- It's implied he had military training, supported by some of his tattoos.