[s10e4] — The Itch

: Leaving the victims' bodies in public spaces after they have scratched themselves to death or been killed during his "experiments." Key Plot Points

The Behavioral Analysis Unit (BAU) travels to , to investigate a series of murders involving victims whose bodies are covered in scratches. The investigation reveals that the UnSub (Unknown Subject) suffers from Morgellons disease , a delusional skin infestation where the sufferer believes their skin is infested with bugs or fibers. The UnSub: Leo Jenkins [S10E4] The Itch

: A former journalist who lost his sanity after the death of his son. He became obsessed with the idea that a government conspiracy or an environmental factor caused his "infestation." : Leaving the victims' bodies in public spaces

: Jenkins becomes convinced that an entomologist at a local university is responsible for releasing the "bugs." He became obsessed with the idea that a

: Jenkins targets members of a Morgellons support group, believing they are being silenced.