This is backed up later when it is revealed that Hill is the daughter of Trinity. Hill later confesses to Debra that she was the shooter, and proceeds to shoot herself in the head. Due to her solving the Lundy killing, Debra restarts her search for Harry's C.I. mistress, and finds out about Laura Moser, and the fact that Dexter and the Ice Truck Killer were brothers. In the revival series, Dexter: New Blood, Debra, while still dead, has replaced Harry in Dexter's mind as his "Dark Passenger". James Doakes Erik King (seasons 1–2; guest season 7) James Doakes is a sergeant serving as lead case investigator to Miami Metro PD's Homicide. Doakes had killer impulses which drove him to divorce his wife, confessing that if he had stayed with her any longer, he would have killed her. Doakes instinctively hates Dexter and is the only person in Dexter's life who can see through his false persona of normalcy. Doakes suspects that Dexter is hiding a dark secret and has no reservations about cursing him to his face. Ultimately, Doakes realizes that Dexter is withholding vital information on the Ice Truck Killer case and his frustration drives Doakes to physically attack him, only for Dexter to expertly fight back. Doakes' friend LaGuerta tells him to back off, but Doakes begins stalking Dexter in secret. Doakes temporarily ends his illicit pursuit when he finds Dexter at a Narcotics Anonymous meeting, supposedly for heroin addiction. Doakes erroneously believes Dexter's dark secret is that he is a drug addict whose addiction is caused by work-related stress, Doakes tells Dexter that he has seen many policemen led down the same path. Feeling sympathetic towards Dexter, Doakes briefly leaves him alone. Doakes resumes the hunt when Debra innocently reveals that Dexter does not so much as smoke. On finding Doakes meddling in his past again, Dexter goads him into a seemingly unprovoked fight in front of the entire squad room. Doakes breaks into Dexter's apartment, and stumbles upon Dexter's blood slide collection box, and realizes that Dexter could be the Bay Harbor Butcher. He steals the slides to have them analyzed. Ironically, Doakes is by now the prime suspect in the case, thanks to Dexter's manipulation of the evidence. Doakes attempts to apprehend Dexter himself in the Everglades, but Dexter gets the upper hand and locks him in Jimenez's cabin while deciding what to do