List of minor criminals/Season Eight

This list covers all minor criminals mentioned in Season Eight.

Unnamed Seattle serial killer
An unnamed serial killer on whose case Alex Blake worked; it was her first case with the BAU since her leave of absence following the Amerithrax case. In The Silencer, she mentions that he used his own child to bait his victims (not unlike Season Three criminal Joe Smith) and made Gary Ridgway, who was also active in Seattle, "look like a saint". The case was mentioned again in The Replicator, where it is revealed that a woman had been killed by a copycat.

Rudy Stein
An inmate who was put on a work detail with future killer David Roy Turner, whom he tutored on how to kill without getting caught, having committed a number of murders in New York himself. The two maintained close contact after David's release, until Rudy died from a massive stroke while still in prison.

Unnamed Whitewood assailant
An unidentified man who was responsible for abducting future killer Toby Whitewood and his sister in 2010, sexually assaulting the latter and then killing her in front of Toby before escaping. This act would be responsible for inducing Toby's psychopathic tendencies. It is unknown if the man was apprehended afterwards.

Unnamed carjacker
An unidentified man who killed a woman and her daughter while stealing their vehicle in Seattle. Local authorities managed to catch up with him and arrest him, to which he confessed. A misinterpretation about the man's identity would be one of the stressors behind Carl Finster's crimes.

Unnamed robber
An unnamed man who robbed and then fatally shot Alex Rain in front of his son Adam's eyes. It is unknown if the robber was caught and convicted of his crime.

Conversion camps
Prior to the events of the episode, several conversion camps were shut down for using brutal and illegal methods. JJ mentioned that one camp was shut down the previous year for using electroshock therapy, while Blake mentioned another had stripped its attendees naked and screamed profanities at them before being caught.

Camp Willing
A conversion camp that used brutal and illegal methods, such as electroshock therapy, on their patients. Their actions become the catalyst for future serial killer Paul Westin. By the end of the episode, the camp is raided and the employees are arrested.

Isabella Grant
A prostitute who abused and molested Paul Westin at Camp Willing. She is currently incarcerated for her crimes and proved to be of help for the case at hand.

Jack Lee Kemper
A serial killer who was investigated by Gideon. He targeted nurses, killing four, and was apprehended before he could kill a fifth victim. Prior to his arrest, Donnie Bidwell was considered a primary suspect. He died of an overdose five months prior to the episode, the same time the Replicator first committed murder. Kemper's surname is taken from real-life serial killer Edmund Kemper, presumably as a reference to him.

Unnamed cop killer
An unidentified cop killer who fatally shot Detective David Rizzo's partner.

Michael Crowley
A swimming coach who was the first victim of spree killer Rodney Harris, who specifically targeted him when he molested his son Tyler.

Thane Parks
The boss of Sean Hotchner, who would date-rape women at the bar he owned using ecstasy-tainted wine and later became indirectly responsible for some of the deaths of victims of overdosing deaths. He is arrested when he attempts to stab Sean, who is wearing a wire while trying to wrangle information out of him concerning a case, but is put under witness protection when it turns out that the unsub could be potentially targeting employees of the bar (including him). After the unsub is arrested, it is likely Thane was arrested afterwards for his actions.

Liz Leonte
An accomplice of Thane Parks in his date rapes and later the tainting of wine with ecstasy. She is put under witness protection alongside Thane and presumably arrested after the unsub is arrested.