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Investigators find second person's DNA in mysterious death of Argentine prosecutor

  • Sara Garfunkel, mother of late prosecutor Alberto Nisman, leaves the prosecutor's office that leads the investigation of the mysterious death of her son, after giving a statement in Buenos Aires, Argentina,Tuesday, Feb. 10, 2015. Nisman’s mysterious death came as he was presenting allegations that Argentine President Cristina Fernandez had conspired to protect Iranian officials implicated in the 1994 bombing of a Jewish community center in which 85 people died. Fernandez and Iran have denied the allegations.  (AP Photo/Rodrigo Abd)

    Sara Garfunkel, mother of late prosecutor Alberto Nisman, leaves the prosecutor's office that leads the investigation of the mysterious death of her son, after giving a statement in Buenos Aires, Argentina,Tuesday, Feb. 10, 2015. Nisman’s mysterious death came as he was presenting allegations that Argentine President Cristina Fernandez had conspired to protect Iranian officials implicated in the 1994 bombing of a Jewish community center in which 85 people died. Fernandez and Iran have denied the allegations. (AP Photo/Rodrigo Abd)  (The Associated Press)

  • A poster announcing a march organized by federal prosecutors in demand for justice to commemorate the first month after the death of prosecutor Alberto Nisman, is seen on a window in Buenos Aires, Argentina,Tuesday, Feb. 10, 2015. Nisman’s mysterious death came as he was presenting allegations that Argentine President Cristina Fernandez had conspired to protect Iranian officials implicated in the 1994 bombing of a Jewish community center in which 85 people died. Fernandez and Iran have denied the allegations.  (AP Photo/Rodrigo Abd)

    A poster announcing a march organized by federal prosecutors in demand for justice to commemorate the first month after the death of prosecutor Alberto Nisman, is seen on a window in Buenos Aires, Argentina,Tuesday, Feb. 10, 2015. Nisman’s mysterious death came as he was presenting allegations that Argentine President Cristina Fernandez had conspired to protect Iranian officials implicated in the 1994 bombing of a Jewish community center in which 85 people died. Fernandez and Iran have denied the allegations. (AP Photo/Rodrigo Abd)  (The Associated Press)

  • Sara Garfunkel, center, mother of late prosecutor Alberto Nisman, leaves the prosecutor's office that leads the investigation of the mysterious death of her son, after giving her statement to authorities, in Buenos Aires, Argentina,Tuesday, Feb. 10, 2015. Nisman’s mysterious death came as he was presenting allegations that Argentine President Cristina Fernandez had conspired to protect Iranian officials implicated in the 1994 bombing of a Jewish community center in which 85 people died. Fernandez and Iran have denied the allegations. (AP Photo/Rodrigo Abd)

    Sara Garfunkel, center, mother of late prosecutor Alberto Nisman, leaves the prosecutor's office that leads the investigation of the mysterious death of her son, after giving her statement to authorities, in Buenos Aires, Argentina,Tuesday, Feb. 10, 2015. Nisman’s mysterious death came as he was presenting allegations that Argentine President Cristina Fernandez had conspired to protect Iranian officials implicated in the 1994 bombing of a Jewish community center in which 85 people died. Fernandez and Iran have denied the allegations. (AP Photo/Rodrigo Abd)  (The Associated Press)

Argentine investigators say they have found a second person's DNA in the apartment where prosecutor Alberto Nisman was found dead and have called in a witness to check for a match.

Nisman's mysterious death came as he was presenting allegations that President Cristina Fernandez had conspired to protect Iranian officials implicated in the bombing of a Jewish community center in which 85 people died.

The statement released by the office of Judge Fabiana Palmaghini says she is calling in a person who visited Nisman the day before his body was found. She does not name him, but Nisman aide Diego Lagomarsino has acknowledged visiting Nisman on Jan. 17.

Investigators say they don't yet know if Nisman committed suicide or was killed.