[s4e18] Omnivore -

The Behavioral Analysis Unit (BAU) travels to Boston to investigate the return of a notorious serial killer, , who had stopped killing 10 years prior. The killer had previously made a "deal" with the lead detective on the case to stop his spree if the investigation was dropped. When that detective dies, The Reaper begins killing again to reclaim his "power". Key Character: The Reaper (George Foyet)

: Community discussions on Reddit often debate whether the BAU actually had enough physical evidence to convict Foyet at the time Hotch identified him, or if the case relied primarily on psychological profiling. Where to Watch [S4E18] Omnivore

: He often takes "trophies" or personal possessions from his victims to showcase his power. Critical Reception and Discussion The Behavioral Analysis Unit (BAU) travels to Boston

: Fans often cite this episode as the beginning of one of the show's best story arcs. It sets up a long-standing personal rivalry between Foyet and Unit Chief Aaron Hotchner . Key Character: The Reaper (George Foyet) : Community