Final answer:
A "Black Widow" is best categorized as a Power/Control serial killer in the Holmes and Holmes typologies, characterizing a murderer who kills for dominance and control.
Step-by-step explanation:
A "Black Widow" would most appropriately be categorized as a Power/Control serial killer under the Holmes and Holmes typologies. The Holmes and Holmes serial killer typology is a system used to classify murderers based on their motivations and crime characteristics. This typology includes categories such as Visionary, Mission-Oriented, Hedonistic, and Power/Control. A Black Widow killer, usually a woman who murders her spouses, lovers, or family members for material gain, would fall under the Power/Control type because they often kill to maintain dominance and control over their victims' lives, and often the murders are meticulously planned.