John Nichols

John Nichols is a serial killer (and later a copycat) who appeared in The Black Queen.

History
Little is known about Nichols, including why he started killing prostitutes alongside his partner Sam Russell. However, what is known about him is that he became a hacker, which could be how he met Russell, also a hacker. When Russell was arrested as a suspect for the killings they committed together, he convinced him to take the fall in exchange for supplying him with pills. When Russell agreed to the deal, Nichols stopped killing until Russell's execution was set in January 2014, scheduled to be two weeks after the occurrence of "The Black Queen". This prompted Nichols to start killing again.

Modus Operandi
Nichols targeted prostitutes alongside Russell, all of whom were drugged by a drink that they took. During the 2004 killings, he either stabbed them or strangled them to death, although it is unknown as to which method he used to kill his victims. During the 2014 killings, he initially copied Russell's method of killing onto one of his victims. Later on, he also began fatally poisoning his victims with Oxycodone. Also, judging by a couple of scenes in the episode, he apparently seemed to allow his drugged victims to crawl across the ground, presumably to taunt and/or psychologically torture them.

Known Victims

 * 2004: Four unnamed prostitutes
 * 2014:
 * Gloria Holden and Marguerite Churchill
 * Debbie Bloom
 * Shane Wyeth

Appearances

 * Season Nine
 * The Black Queen