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Denise Cosco, daughter of mafia whistleblower, dies at 35

Denise Cosco died at 35 in a Rome hospital after testifying against her father, Carlo Cosco, for the 2009 murder of her mother Lea Garofalo.

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12 Sep 2026Source: BBC World3 min read (0 views)
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Denise Cosco, daughter of mafia whistleblower, dies at 35

Stock photo for illustration only, not from the actual event

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  • Denise Cosco passed away at age 35 in a Rome hospital following critical injuries found on Sunday.
  • She famously testified against her father, Carlo Cosco, in the trial for her mother's murder.
  • Her mother, Lea Garofalo, was brutally murdered in 2009 after turning state witness against the 'Ndrangheta mafia.
  • Italian prosecutors have launched an investigation to determine if there was any incitement to suicide.

Denise Cosco, a woman who bravely testified against her own father in a notorious mafia murder trial in Italy, has reportedly taken her own life at the age of 35. She was discovered critically injured on Sunday and later passed away at a hospital in Rome, Italy.

Her mother, Lea Garofalo, was murdered back in 2009 and has since become a powerful symbol of resistance against the mafia after turning state witness against the 'Ndrangheta clan based in southern Italy.

35Age of Denise and her mother at death
2009Year Lea Garofalo was murdered

Friends close to Cosco recall her extraordinary bravery in speaking out during her father's trial, while also acknowledging the tremendous personal struggle she endured in the ensuing years. She died at 35, the exact same age her mother was when she was killed.

"Today, something in that fragile equilibrium was broken forever."

Francesca Rispoli, Libera co-president

Francesca Rispoli, co-president of the anti-mafia organisation Libera, stated that the tragedy highlights the intense struggles faced by individuals who sever ties with organised crime networks. Like her mother, Cosco had lived under state protection with a completely new identity for many years.

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State protection programs are essential for safeguarding witnesses involved in high-stakes organised crime trials, yet they often introduce psychological hurdles. Relocation, isolation, and the loss of personal history can lead to long-term trauma, anxiety, and depression, underscoring that physical safety does not automatically ensure psychological recovery.

Rispoli noted that Cosco remained extremely vulnerable and had recently reconnected with her father, Carlo Cosco, in prison because she felt a profound void in her life. Close friends also shared that she had struggled significantly with mental health challenges and substance addiction.

Throughout her life, Cosco steadfastly refused to believe her father's lies that her mother had abandoned the family to move to Australia. In reality, her father had lured Garofalo to a meeting before she was strangled, dismembered, and incinerated. Years later, information provided by one of the killers enabled police to recover bone fragments and a necklace, which Cosco successfully identified. Her father and three accomplices were subsequently sentenced to life imprisonment.

Source: BBC World

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