Barry Plyman

The Chemist (real name unknown) was a serial killer, poisoner, and hitman who appeared in Season Eleven of Criminal Minds.

Background
Absolutely nothing about the Chemist's background is known, not even his real name. What is known is that he was a hitman and a member of a network of hitmen that cropped up after the dismantlement of the Silk Road by the FBI in 2013.

Modus Operandi
The Chemist killed the victims in his contract kills by poisoning them with poisons and/or toxins that could be absorbed into the skin and kill a person in seconds, which he would place an objects and swap for objects that looked exactly the same as and belonged to the victims without them noticing. Based on his nickname, it can be assumed that he would make the poisons and/or toxins he used on his victims himself

Profile
No official profile of the Chemist was made by the BAU, since they focused on the network as a whole.

Known Victims

 * Killed numerous unnamed victims prior to Entropy
 * Unspecified date and location: Unnamed lawyer

Appearances

 * Season Eleven
 * Entropy