He owned a motel at which Dexter Morgan stayed overnight in Kearney, Nebraska. He made a fatal mistake when he tried to extort money from Dexter.
At first, he appears to be a helpful, but somewhat annoying guy. He offers to fix Dexter's tire but his small talk, according to Brian, "could turn anyone into a homicidal maniac."
Later, he shows a more paranoid personality, believing that Dexter, due to his soft hands, is affiliated with the DEA, ATF, or FBI and will arrest him for the illegal pot plants he is hiding in the corn fields.
Norm is also greedy, and tries to extort ten thousand dollars from Dexter to get back his knives, believing that Dexter is rich due to his car.
Norm offers to fix the flat tire on Dexter's car, and tells him to go to town if he wants to. Dexter, under Brian's persuasion, takes a shortcut through Norm's field, finding marijuana plants.
Later, when Dexter goes to investigate Jonah Mitchell's house, he discovers that his tools and his forensics kit are missing from his trunk. However, he still checks the house, which ends in a confrontation with Jonah. Dexter goes back to the motel to take back his knives from Norm, and set up a kill room. Dexter finds Norm in a shed examining his knives and forensic kit. Norm comments that he will sell the knives back to Dexter for ten thousand dollars. Dexter says that he will give him money, but demands his knives first. Norm, thinking their value is monetary, pulls out the gun that Dexter had stolen from a clerk and holds it on Dexter. Norm threatens Dexter, saying that he either gets the money or Dexter is a dead man. However, Dexter knows that the gun is empty as he had shot off all the bullets the night before. As Norm holds the gun on him, Brian seemingly grabs a nearby pitchfork, and stabs Norm in the stomach with it.
However, the camera pans, showing that Dexter is actually the one who stabbed Norm with the pitchfork. He then removes the pitchfork, and watches as Brian dies. Brian asks Dexter why he wakes his victims up before killing them, and Dexter tells Brian it's because he wants them to know what they've done. But Brian dismisses that, telling him it's because he wants to watch the life leave their eyes, and it doesn't matter if they are guilty or innocent.
Dexter ponders how he can dispose of Norm. Brian comments that he could just leave his body out in the open since Norm is "a thief, a pot grower, and an asshole" which would explain his death, but Dexter says he has "a better idea." He then throws Norm into a silo, watching as his body sinks under the corn. Brian says, "Hope you took a souvenir." Dexter seals the silo and goes to meet with Jonah Mitchell.
- His name and character is most likely a reference to the Alfred Hitchcock movie, Psycho.
- In the scene where he is killed, Dexter and Brian are standing in front a painting of an old farmhouse. In the shot, they resemble the painting, American Gothic by Grant Wood.