Analysis of information sources in references of the Wikipedia article "List of serial killers by number of victims" in English language version.
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: CS1 maint: bot: original URL status unknown (link)"... the detainees were: Sergio Armendariz Diaz "El Diablo", Jose Luis Rosales, Fernando Germes Aguirre, Juan José Contreras Jurado, Gerardo Fernandez Molina, Carlos Hernández Molina Mariscal, Carlos Barrientos Vidales, Hector Raymundo Olivares, Romel Omar Ceniceros Garcia and Ericka Fierro, the majority were released due to lack of incriminating evidence ..."
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: CS1 maint: numeric names: authors list (link)Serial killer expert Peter Vronsky says Cottingham now has 17 known victims.
A person who murders 3+ people over a period of > 30 days, with an inactive period between each murder, and whose motivation for killing is largely based on psychological gratification.