In episode 5x09 of the TV show Criminal Minds, titled "Hotch Kills The Reaper", a major development occurs in the ongoing story arc involving a notorious serial killer known as "The Reaper". The episode showcases a high-stakes confrontation between main character Aaron Hotchner (played by actor Thomas Gibson) and the Reaper, resulting in the death of the infamous criminal. The episode delivers intense and gripping moments as the team of FBI profilers led by Hotchner seeks to bring an end to the Reaper's reign of terror.

 Hotchner, driven by a personal vendetta against the killer, showcases his determination and resourcefulness, ultimately overpowering the Reaper and delivering the fatal blow. The episode marks a significant turning point in the series and draws on previous episodes where the Reaper had eluded capture. The storyline of Hotchner's personal tragedy at the hands of the Reaper adds an emotional element to the episode, allowing viewers to connect on a deeper level with the character. The intense action and suspense throughout the episode keep audiences engaged and on the edge of their seats, as they eagerly anticipate the final showdown between Hotchner and the Reaper.