Yiya Murano

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Yiya Murano
Yiya murano10.jpg
Murano in 1979
María de las Mercedes Bernardina Bolla Aponte de Murano

(1930-05-20)20 May 1930
Died26 April 2014(2014-04-26) (aged 83)
Other namesThe Poisoner of Monserrat
Criminal chargeMurder
Penalty16 years
Span of crimes
February–March 1979

María de las Mercedes Bernardina Bolla Aponte de Murano (20 May 1930 - 26 April 2014),[1] better known as Yiya Murano, and also referred to as the Poisoner of Monserrat was an Argentinian 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.


Nilda Gamba, a neighbor of Murano's died on 10 February 1979. On 19 February, Murano's friend, Leila Chicha Formisano de Ayala, died. Murano owed money to both women, and both bodies showed signs of cyanide poisoning.[citation needed]

On 24 March 1979, Murano's cousin, Carmen Zulema del Giorgio de Venturini, fell and died on the stairs of a building on Hipólito Yrigoyen Street, where she lived. Zulema's death was initially attributed to cardiac arrest. Zulema's daughter 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 masas finas), and had casually asked for a copy of the keys to Zulema's apartment keys, saying, "I need her notebook to warn her relatives".[2] Murano entered her cousin's apartment and left quickly, carrying papers and a jar. She complained loudly: "My God, it's my third friend to die in a short time!" During the autopsy, examiners discovered cyanide in Zulema's body. Investigators discovered the poison in the jar mentioned by the doorman, and in the masas finas.[citation needed]


On 27 April 1979, the police arrested Murano at her home on Mexico Street. In 1980, she was found unconscious in the prison where she was being held; later, they removed one of Murano's lungs.[citation needed]

Murano was convicted in 1985, during the Trial of the Juntas. She insisted upon her innocence, saying: "I never invited anyone to eat."[citation needed]

Murano was released from prison after 16 years. It was learned that she sent the judges who released her a box of chocolates as a token of her appreciation.[3]


Argentinian writer Marisa Grinstein included Murano in her book Mujeres Asesinas (Killer Women). In 2006, an episode of the Canal 13 television series of the same name featured a recreation of Murano's crimes. At the end of the episode, the real Yiya Murano appeared and proclaimed her innocence, citing evidence.[citation needed]

The second season of Mujeres Asesinas, the Mexican adaptation of the series, featured an episode based on Murano entitled "Tita Garza, Swindler," starring Patricia Reyes Spindola.[citation needed]


  1. ^ Jara, Fernanda (12 September 2015). "La historia de Yiya Murano, la mujer que envenenaba a sus prestamistas". Infobae (in Spanish). Retrieved 26 November 2016.
  2. ^ "Mujer envenenadora: Yiya Murano". eMujer.com (in Spanish). 23 June 2007. Retrieved 26 November 2016.
  3. ^ "Hace veinte años condenaban a la "envenenadora de Monserrat"". Clarín (in Spanish). 28 June 2005. Retrieved 26 November 2016.