"Alchemy" Episode 20 in Season 8
Andrew Adams
Updated on March 19, 2026
(From left) Reid (Matthew Gray Gubler), JJ (A.J. Cook), Blake (Jeanne Tripplehorn), Local Detective Tom Landry (guest star John Posey) assists Morgan (Shemar Moore), Hotch (Thomas Gibson) and Rossi (Joe Mantegna) when the BAU travels to Rapid City after two male victims are discovered murdered in a ritualistic manner, on CRIMINAL MINDS, Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.
