Written by Bo Crese and directed by Edward Allen Bernero, the episode originally aired on CBS on November 25, 2009.
After discovering where the letters originated, Reid (Matthew Gray Gubler) starts to create anagrams for "The Reaper" to figure out the alias Foyet may be using, and he comes up with the name "Peter Rhea."
Marshal assigned to protect Hotch's ex-wife, Haley (Meredith Monroe), and son, Jack (Cade Owens).
Hotch empties a clip into the hidden figure, who turns out to be Foyet wearing a bulletproof vest.
At the end of the internal investigation, the panel rules that Agent Hotchner's actions were acceptable under the circumstances.
It is an acronym formed from the first letter of the name of every writer who contributed to the script: Breen Frazier, Oanh Ly, Chris Mundy, Rick Dunkle, Erica Messer, Simon Mirren and Edward Allen Bernero.
[1] In an early draft of the script for this episode, Hotchner was written to kill George Foyet with his own knife.
However, Edward Allen Bernero and Thomas Gibson believed the scene would be more powerful if Hotch used his bare hands.
[1] Speaking about the 100th episode, showrunner Edward Allen Bernero said he wanted to revisit a question that was raised in the pilot of Criminal Minds: "There's a question raised in the pilot episode of whether you can spend your time hunting monsters and not become a monster.
[4] Anthony Ocasio from Screen Rant gave the episode a positive review, saying that it "had me sitting on the edge of my seat the entire way" and said the scene with the Reaper, Haley and Jack was "the most intense thing I’ve seen all year".