S6:E10 We're winding down towards the end of the season and now that it's been announced the show has been renewed for two more seasons (and then it will probably end), we're constantly on the lookout for signs if Dexter will ever be caught. And I believe he will be, based on the facts that Deb is debating whether or not he is worthy of her suspicion, he seems to be getting careless (Deb found a pen in his bag that proved he went to Nebraska), and he's becoming more and more obsessed with his kills. Additionally, Dexter seems to despise Harry more and more (which is the reason he's remained out of prison for this long), and we witnessed several incidents this episode where Dexter openly rejected Harry.
"No, Professor Gellar, I did not kill you." - Travis
After Dexter finds Professor Gellar’s body in the freezer, he looks through a window and sees Travis having a conversation with himself. Dexter listens, and hears Travis telling Gellar he didn’t kill him. We then see Gellar, and watch him as he tells Travis “yes, you did kill me, because I told you how delusional you were.” Then we learn three years ago, Travis approached Gellar with some ideas about the Book of Revelations and asked him to steal an ancient weapon from the University. But Gellar said he wasn’t going to help him do anything illegal, and that’s why Travis killed him and became a serial killer. After Travis leaves the church, Dexter stays and as he’s looking around, he gets a text from Deborah saying they are tracking the IP address of Gellar’s blog, which meant police would be at the church soon. Dexter decides to keep Gellar’s body hidden from the police for the time being, because it might help lead him to Travis. He quickly amputates one of Gellar’s hands and puts his fingerprints on an axe so the police will keep looking for him, which means Dexter will be the only one hunting Travis. Harry tells him to back off and to let the police handle Travis, but Dexter says he can't because the only way to stop him is to kill him. Dexter and Harry's conversation continues, and Dexter directs some surprisingly harsh statements to his dead father, which is noteworthy because it's the first time he's ever seemed to abhor his presence. Later in the day, Dexter is called back to the church and as his colleagues are searching around, he checks Gellar’s blog (which again, is really written by Travis) and sees a new post about how the “false prophet will be punished” and that Travis “made a mistake listening to the false prophet.” Dexter assumes Travis is referring to him as the false prophet, and figures out the mistake Travis wants to fix is Holly Madison, the woman he captured and planned to sacrifice but then let go because Dexter talked to him about not having to succumb to the urges. “I’m here to tell you your time has come.” – Travis Travis meets up with Adam, who he met on Gellar’s blog. He goes to his house and tells him and his wife he wants their help, because of how faithful to God they’ve been. We then flash over to Dexter talking to a young girl at her house, who research told him was the daughter of Holly Madison’s employer. Dexter went over there wanting to know if her dad had seen Holly recently, and the girl said she hadn’t, but that if he was really interested in finding her he should check on her dad’s boat because that’s where Holly and her dad go to have sex. Over on the boat, we watch as Holly comes aboard and pours herself a drink – but not before Adam and Beth and Travis all corner her and tie her down to a chair. Travis tells the married couple they’re going to kill Holly, and while Adam is excited Beth is not, so Travis calms her down and tells her that she’s going to save herself by cleansing Holly of her sins. He then swiftly slits Holly’s throat and hands the knife to Adam, who stabs her. “The game is about homicide. In my game, you can be the serial killer.” – Louis Dexter comes home from work and finds Jamie and Louis hanging out with Harrison in the living room. He asks if Jamie can stay late, but she says she can’t because she has plans to go to a concert with Louis. As she leaves to go put Harrison down to sleep, Louis asks Dexter if he can show him his latest video game and get his feedback on how accurate the blood spatter patterns are. Dexter agrees, and Louis puts the CD into his computer and starts explaining that in his video game, the player can choose to be various serial killers like Jeffrey Dahmer, the Bay Harbor Butcher, or the Ice Truck Killer. Dexter tells Louis his game is offensive because who in their right mind would want to be a serial killer, and says it in such a way that it hints at how he detests the fact he’s a murderer. He then asks Louis why anyone would wonder what it's like to take a life, and advises Louis to come up with another kind of game. Louis is so distraught that he breaks his date with Jamie and heads back to his house without her. "This is Wormwood." - Travis At the church, the cops figure out Gellar's next kill is going to be a tribute to Wormwood, and in the Book of Revelations, it's a story about a star that crashes to earth and poisons everyone. On the Ricochet Rabbit, Travis is seen wearing a hazmat suit and delicately handling two thermoses, and then taking them outside to show Beth and Adam proudly. Back at the police station, Deb roots through some of Jessica Morris' stuff and finds a card from a flower store that was signed by a guy named "T." Deb calls the flower store to see who sent it, and the guy on the phone tells her it was send by Thomas Matthews. Deb is shocked to hear this because that's her Deputy Chief, and it suddenly makes sense to her why LaGuerta was so adamant about her not investigating Jessica's death. Across the hall, Louis is sitting at his desk looking pretty depressed, and Batista comes over to talk to him. Louis tells him someone named Adam posted on Gellar's blog, saying he and his wife and the Doomsday killer just completed their last task and that they would see everyone else in paradise. Louis tells Batista that Adam's real name is Steve, and Batista goes to his house to investigate. Once there, he meets with Beth and asks her if she's aware her husband has been posting on Gellar's blog. She says she wasn't aware and that she would see to it he stopped, and Batista chastises her for wasting police time. On Ricochet Rabbit, we see Dexter stabbing Steve thinking he was Travis, who falls to the floor and tells Dexter that he's too late because Wormwood can't be stopped. Harry appears, and tells Dexter this whole thing is too out of control and that he should just stop what he's doing and call the police. Dexter yells at him that he will make his own decisions, and rushes out onto the deck and finds two bottles of chemicals that when combined, are lethal. He calls the police and anonymously tells them that there's poison on a boat in the marina, and leaves because Travis is nowhere to be found. However, he's just over at Beth's house, knocking Batista until he's unconscious. It seems to me that these episodes are slowly showing us how Dexter will eventually be caught. Deb is suspicious about what he does in his private life, he's acting impulsively, yelling at Harry, and generally not being as cautious as he usually is. But by far the most significant part of this episode was how Dexter is slowly starting to reject Harry, and his recommendations. In previous seasons, Harry has guided Dexter and kept him safe from capture -- but now, Dexter is acting on his own impulses instead of following Harry's advice...which means when he stops listening to Harry completely is when he'll be caught by authorities.