Yiya Murano
Argentinian swindler and murderer

María de las Mercedes Bernardina Bolla Aponte de Murano (20 May 1930 – 26 April 2014), better known as Yiya Murano, and also referred to as The Poisoner of Monserrat was an Argentine serial killer and swindler. Convicted of three murders, she was imprisoned for 16 years before being sent to an elderly care facility to serve out the remainder of her sentence, due to her advanced age.
Murders
On March 24, 1979, Murano's cousin, Carmen Zulema "Mema" del Giorgio de Venturini, fell and died on the stairs of the building on Hipólito Yrigoyen Street where she lived. Zulema's death was initially attributed to cardiac arrest. Days later, one of her daughters found that a promissory note worth 20 million Argentine peso ley was missing from her mother's belongings. The building's doorman said that Murano arrived for a visit carrying a mysterious package (which was later discovered to contain petit fours), and had casually asked for a copy of the keys to Zulema's apartment, saying, "I need her phonebook to warn her relatives". Murano entered her cousin's apartment and left quickly, carrying papers and a little bottle. She complained loudly: "My God, it's the third friend of mine to die in a short time!". Zulema's daughter alerted the authorities and during the autopsy, examiners discovered large amounts of cyanide in Zulema's body.
The investigators soon discovered that Nilda Adelina Gamba, a neighbor and old friend of Murano's, had died under rather unclear circumstances on February 10, 1979.
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