Walter DeMunn was a Sacramento county driver and prison guard, whom Jane interrogates about the disappearance of Lorelei Martins.
He claims that he had never seen Lorelei before but, judging from his body language and reactions, Jane knows that he is lying. Angrily, Walter leaves before Jane can ask any more questions.
Jane successfully waits for Walter at his house. Walter wants him to leave, but Jane pours them a drink and asks him to sit down. He tells him that he knows that Walter raped an inmate and that the FBI used that inside information to exert leverage on him, blackmailing him to take Lorelei away. Walter is shocked that Jane found out and confesses that he was contacted by an agent. Walter tells Jane that the pretended agent called himself Agent Nemo, a possible alias of Red John, who has forced DeMunn to work for him. Walter says that he is willing to tell him where he took Lorelei. (to a federal prison).
Some time later, Jane walks out of his house. Before getting into his car and leaving, Jane tells the arriving police to arrest DeMunn.
Trivia
- Of all of Red John's accomplices, he is the only one to date who was forced to help Red John and not brainwashed into helping him.