"Alchemy" Episode 20 in Season 8

Reid (Matthew Gray Gubler) studies evidence as the BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner. Also, he continues to struggle with his grief over Maeve’s death, on CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Gubler also directs the episode. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

(From left) 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, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

Rossi (Joe Mantegna) and the BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner, on CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

Series star Matthew Gray Gubler studies shots when he directs an episode of CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

With co-star Joe Mantegna (right) looking on, series star Matthew Gray Gubler directs an episode of CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

As Reid (Mathew Gray Gubler) and the BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner, he continues to struggle with his grief over Maeve’s death, on CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Gubler also directs the episode. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

Rossi (Joe Mantegna), Blake (Jeanne Tripplehorn) and the rest of the BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner, on CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

(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.

(From left) Agent Stern (guest star Claudia Christian), Detective Tom Landry (guest star John Posey) are assisted by Hotch (Thomas Gibson) and JJ (A.J. Cook) when the BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner, on CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.

Thanks to Josey C. for this photo caption!

JJ (A.J. Cook) and the BAU travel to Rapid City after two male victims are discovered murdered in a ritualistic manner, on CRIMINAL MINDS, Wednesday, May 1 (9:00-10:00 PM, ET/PT) on the CBS Television Network. Photo: Sonja Flemming/CBS ©2013 CBS Broadcasting, Inc. All Rights Reserved.