Fans of the show, which is a spinoff and continuation of the original "Criminal Minds" series, had some strong reactions to the plot move and worried about how it will affect Will's wife JJ Jareau (A.J. Cook). "Criminal Minds I will not forgive you for doing this to JJ," one wrote on X.

Evolution shocked fans and characters alike in Season 18, Episode 2 by abruptly killing off Josh Stewart’s Detective William LaMontagne Jr. in a devastating twist. Will spent the majority of Season 18’s first two episodes away on a case,

The BAU hunts a sadistic predator while Voit plays broken — and JJ suffers a devastating loss. Criminal Minds: Evolution doesn’t hold back.