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Ex-wife of late prosecutor says investigative team concludes Alberto Nisman was killed

  • A man holds a handwritten message that reads in Spanish; "We are Nisman, Truth and Justice," in front of the building where Sandra Arroyo Salgado, ex-wife of the late Argentina prosecutor Alberto Nisman, held a press conference, in Buenos Aires, Argentina, Thursday, March 5, 2015. Salgado said that experts hired by the family of Argentine prosecutor concluded that he was killed and ruled out the hypothesis of suicide. (AP Photo/Natacha Pisarenko)

    A man holds a handwritten message that reads in Spanish; "We are Nisman, Truth and Justice," in front of the building where Sandra Arroyo Salgado, ex-wife of the late Argentina prosecutor Alberto Nisman, held a press conference, in Buenos Aires, Argentina, Thursday, March 5, 2015. Salgado said that experts hired by the family of Argentine prosecutor concluded that he was killed and ruled out the hypothesis of suicide. (AP Photo/Natacha Pisarenko)  (The Associated Press)

  • Sandra Arroyo Salgado, ex-wife of the late Argentina prosecutor Alberto Nisman, talks during a press conference beside forensic doctor Osvaldo Raffo, in Buenos Aires, Argentina, Thursday, March 5, 2015. Salgado said that experts hired by the family of Argentine prosecutor concluded that he was killed and ruled out the hypothesis of suicide. (AP Photo/Natacha Pisarenko)

    Sandra Arroyo Salgado, ex-wife of the late Argentina prosecutor Alberto Nisman, talks during a press conference beside forensic doctor Osvaldo Raffo, in Buenos Aires, Argentina, Thursday, March 5, 2015. Salgado said that experts hired by the family of Argentine prosecutor concluded that he was killed and ruled out the hypothesis of suicide. (AP Photo/Natacha Pisarenko)  (The Associated Press)

  • Sandra Arroyo Salgado , ex-wife of the late Argentina prosecutor Alberto Nisman, talks during a press conference in Buenos Aires, Argentina, Thursday, March 5, 2015.  Salgado said that experts hired by the family of Argentine prosecutor concluded that he was killed and ruled out the hypothesis of suicide. (AP Photo/Natacha Pisarenko)

    Sandra Arroyo Salgado , ex-wife of the late Argentina prosecutor Alberto Nisman, talks during a press conference in Buenos Aires, Argentina, Thursday, March 5, 2015. Salgado said that experts hired by the family of Argentine prosecutor concluded that he was killed and ruled out the hypothesis of suicide. (AP Photo/Natacha Pisarenko)  (The Associated Press)

The ex-wife of a prosecutor whose mysterious death has rocked Argentina says a team of experts she hired has concluded that her former husband was killed.

Sandra Arroyo Salgado said Thursday during a press conference that Alberto Nisman "was a victim of homicide, without any doubt."

Authorities have said they are investigating the possibility of suicide or homicide.

Nisman was found dead in his bathroom on Jan. 18. It was a day before he was to elaborate to lawmakers on his accusations that President Cristina Fernandez orchestrated a secret deal with Iran to hide the role of officials allegedly responsible for the 1994 bombing of a Jewish community center.

Under Argentine law, the families of victims have access to the crime scene and can to do their own forensic tests.