In the episode "Four Months Ago...", it is revealed that D.L. has become a firefighter to make his son proud. He receives a medal for going into a burning home and saving a trapped girl. However, Niki has to be medicated to prevent any new personas from surfacing. She stops using her medication and shortly manifests a new personality called Gina, an alias she used as a runaway. She repeats this pattern, leaving home without telling D.L. or Micah. Unaware of the new personality, D. L. tracks Niki to Los Angeles, believing that Jessica has taken over again. He finds her dancing with a stranger in a club; when she sees him, Niki's personality resurfaces and she leaves with D. L. As they leave, the stranger shoots D. L. in the chest at point-blank range. The wound is apparently fatal, as the next scene is that of D.L's funeral.