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 became a member of a network of hitmen that cropped up after the dismantlement of the Silk Road by the FBI in 2013. At some point in his career, he was hired to kill a lawyer.

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. These poisons/toxins would be placed on objects that were going to be touched by the victims. Based on his nickname, it can be assumed that he would make the poisons/toxins he used on his victims.

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