|Name|| John Nichols|
|Country of Origin||U.S.|
|Area of Operation||San Jose, CA|
|No. of Mutual Victims||8 killed|
|Appx no. of Members||2 (both incarcerated)|
|First Appearance||"The Black Queen"|
Nichols and Russell targeted prostitutes, whom they would call over before incapacitating them by drugging them with a drink. Then, they would kill them by alternating between a pattern of stabbing them and strangling them, depending on who killed them (Nichols stabbed his victims, while Russell strangled his). Judging by the crime scene photos, they would specifically target Caucasian, African-American, and Hispanic prostitutes (it is unknown if the racial types were exclusive to one each or both) and then dispose of their bodies after killing them by dumping them in alleyways or other locations holding trash.
Nichols and Russell both seem somewhat similar to Angelo Buono and Kenneth Bianchi, a.k.a. "The Hillside Stranglers", in the sense that both pairs operated in California, targeted high-risk victims, and murdered their victims together, but one member of each pair also murdered victims alone: Nichols killed three women in response to Russell's impending execution, while Bianchi killed two women in Bellingham, Washington, for unknown reasons.
- 2004: Eight unnamed prostitutes (four killed by Nichols, the other four by Russell)