The BAU travels to San Francisco when a series of murders leads the team to believe the possibility that the elusive "Zodiac Killer" might have returned. Meanwhile, Reid contemplates his own genius capabilities after he and Prentiss attend a seminar on violent crime hosted by the crime novelist Patricia Cornwell.
[S7E11] True Genius
Series of murders in San Francisco bearing the tell-tale signs of the infamous Zodiac Killer have the BAU wondering if the notorious serial killer has returned. Also, Reid ponders if he should be doing more with his genius abilities.
The main villain of the eighth season of Criminal Minds was none other than Mark Hamill who portrayed John Curtis, also known as The Replicator. He was an interesting villain since he was a former FBI special agent with a genius-level IQ who turned into a serial killer. In season 8, he started to create copycat crimes of cases the BAU solved in the past.
The most demented, dangerous, and hated villain in Criminal Minds history is easily The Reaper. Portrayed by C. Thomas Howell, had killed 20 people and was the unsub on the first-ever case that Hotch worked as a BAU senior. No leads came, and The Reaper stopped killing. 11 years later, the lead investigator in the case called Hotch and said that he was dying and believed The Reaper would start killing again. It was true.
As adolescents, Morell and Caleb Rossmore were both child prodigies and school outcasts, bonding over their mutual love of chess, true crime books about serial killers, and the exploits of the Zodiac Killer. When they were 15, Morell and Rossmore tortured animals together until they worked up the courage to kidnap, torture, and murder sseven-year-old Robbie Shaw, the younger brother of a classmate who had been bullying Morell. They buried the body in Morell's backyard and destroyed his features with sulphuric acid they stole from Morell's father, a chemistry teacher at their school.
In the Criminal Minds episode "True Genius," the BAU is called to San Francisco to investigate a series of murder that bear the same tell-tale signs of the infamous Zodiac Killer. As the team works to determine if the notorious killer has returned, Dr. Spencer Reid finds himself questioning how he can best use his genius abilities to help solve the case.
As the team pieces together the evidence and interviews potential suspects, they discover that the killer is not only a copycat, but a genius in his own right. This leads Reid to confront the idea that he could be using his own intelligence to do more, to go beyond the boundaries of the BAU and use his genius to solve the case in ways the other agents couldn't.
Kai tested as a genius when he was a young child and was invited to join Mensa, but declined because, according to him, he was also very troubled. This would appear to be true, as Kai has demonstrated all the signs of a sociopath: he is extremely manipulative and charming, is devoid of a moral compass or a conscience, and has absolutely no feelings of empathy or remorse towards other people. He appears to lack fear, as evidenced by when he harassed several Latin-American workers on the street in order to intentionally be beaten by them, employing Harrison and Meadow Wilton to record the inciting violence as a means of furthering his political agenda, which revolved around gaining the racially motivated fear of the public. Despite this, he is described by his sister as having severe paranoia - a fact supported by Kai's exceeding detachment from reality and inability to distinguish between what are his hallucinations or actual people, including seeing and communicating with visions of other cult figures in history, such as Charles Manson.
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