The episode begins with a devastating blow: the Replicator targets and kills Section Chief Erin Strauss by poisoning her.
The team identifies the killer as John Curtis (played by Mark Hamill), a former FBI agent who felt slighted after being demoted due to a past case involving Alex Blake and Erin Strauss. Criminal Minds subtitles Dutch S08E24
The episode centers on the final confrontation with the , an UnSub who has been mimicking the BAU’s past cases. The episode begins with a devastating blow: the