Jennifer Jareau: So, Nathan's in custody?
Spencer Reid: They're holding him downtown.
Jennifer Jareau: You really think he killed that last woman?
Spencer Reid: It's possible.
Jennifer Jareau: But?
Spencer Reid: Nathan's evolving. This last kill, it feels like a devolution.
Jason Gideon: It was sloppy and angry. Nathan's smart and directed. He's used to achieving. If he decides to kill, it'll be clinical and efficient.