This is a list of 4 Serial Killers that were active during 1866. Killer.Cloud the Serial Killer Database, an ongoing research project which aims to sort and classify serial killers based on documented references from books written about serial killers as well as other online resources listed at the bottom of each killers profile page.
Confirmed Victims: the number of victims killed in association with a killers serial spree. Some serial killers may have other possible victims that were either unproven or the killers motives and/or methods were unrelated to the spree the killer is being documented as.
The Serial Killers listed above were active during the year of 1866.
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