 Unwilling to let Jake die once again through his inaction, Roland takes control of Mort's body and stops him.This death was the means that forced Jake into Roland's world the first time; when Roland prevented it, it had caused a time paradox, though it was resolved later, or rather, undermined, when Jake entered into Roland's world again, but through a door.Later, Roland purposefully forces Jack Mort to throw himself burning in front of a subway train, while telling him that he deserves a far worse fate.