Evolution shocked fans and characters alike in Season 18, Episode 2 by abruptly killing off Josh Stewart’s Detective William ...

JJ Jareau & Will LaMontagne are Criminal Minds’ longest-term couple, spanning from season 2 into the continuation of Evolution with their 2 sons.

Watch Criminal Minds Evolution Season 3 Episode 2 finale with Voit’s return, The Zookeeper’s crimes, and J.J.’s shocking loss.