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Defiance Schneiderman tells Patrick that she has a psychic named Cleo. In the late 1990s to early 2000s, the Psychic Friends Network had a pay-per-call psychic named Miss Cleo who was famous for her Jamaican patois. At their peak they pulled in over 125 million USD per year, with many people calling in because of the Miss Cleo advertisements.

In her final years, Youree Dell Harris revealed she was hired to play the part by the PFN and adopt that accent (she was born and raised in Florida, not Jamaica). PFN was revealed as a fraud by several former employees (who had been hired to pretend to be psychics) and it went bankrupt in 1998.

When Kim is trying to convince Lisbon to help the FBI on their case, she says that Jane stopped the ten-year reign of a mass murderer. Red John was a serial killer, which by definition is a criminal behavior distinctly different from mass murder.