The Behavioral Analysis Unit (BAU) travels to Winona, Minnesota, to investigate a series of brutal family massacres. The killer—dubbed a "family annihilator"—systematically murders entire households but deliberately leaves one teenage survivor alive.
Kyle targeted the families of those who bullied him, believing death was too easy for them and that they deserved to suffer lifelong emotional agony instead. [S12E5] The Anti-Terrorism Squad
The episode's "family annihilator" plot is primarily based on the real-life Haines family murders . Critical Reception The Behavioral Analysis Unit (BAU) travels to Winona,