On July 6, 2009 in City of São José do Rio Preto in the state of Sao Paulo, Brazil a 17-year old schoolgirl who had been arrested in a street scuffle in Gymslip district of that city made a confession to police that she had, beginning at the age of 15, committed 30 murders. All the victims, according to her, were young men.
She asserted she had over a period of two years stabbed the 30 young men to death motivated by a desire “for money, revenge and to bring justice”. During her interrogation, which was videotaped, she was calm and smiled as she related her story, telling police: “I don’t have enough courage to hold a gun — but I can hold a knife.”
She told detectives she decided to confess in order to avoid the risk of later being found out and charged as an adult: “I am confessing because I promised I would do so before becoming 18 — to avoid upsetting my family.”
The girl told how she always used the same knife — butchering one man for throwing a glass of brandy in her face in a bar fight. But police were last night still unclear about what drove her to keep on killing.
Shortly after the arrest some speculated that the girl might have been hired by an organized crime syndicate as an assassin because she was so innocent-looking.
An investigation was conducted to verify if her confession is true, and so far she has provided elaborate details regarding 11 of the killings. But there have been no public reports on the case since late 2011.
Virginia Wheeler & Dean Valler, “Girl aged 17 knifes 30 men to death,” The Sun (London, England), Aug. 18, 2009 Last Updated: 12th January 2011http://www.thesun.co.uk/sol/homepage/news/2592734/Girl-aged-17-knifes-30-men-to-death.html
“Is a 17-Year-Old Schoolgirl from Brazil the World's Most Prolific Serial Killer?”Investigation Discovery: Bizarre Crimes, August 27, 2009http://blogs.discovery.com/bizarre/2009/08/teenage-serial-killer.html