
Harold Shipman, with 218 probable murders and possibly as many as 250 ( see "Medical professionals", below).
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The most prolific modern serial killer is arguably Dr. Serial killers with the highest known victim count


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Organization and ranking of serial killings is made difficult by the complex nature of serial killers and incomplete knowledge of the full extent of many killers' crimes. In many cases, the exact number of victims assigned to a serial killer is not known, and even if that person is convicted of a few, there can be the possibility that they killed many more.

This list shows all known serial killers from the 20th century to present day by number of victims, then possible victims, then date. There are gaps of time between the killings, which may range from a few days to months, or many years. You can help by adding missing items with reliable sources.Ī serial killer is typically a person who murders three or more people, in two or more separate events over a period of time, for primarily psychological reasons. This is a dynamic list and may never be able to satisfy particular standards for completeness.
