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New questions in mysterious death of Argentine prosecutor after mother discovers gun

  • FILE - In this March 18, 2015 file photo, demonstrators hold images of the late prosecutor Alberto Nisman during an act to demand justice after more than a month after his death, outside the court house in Buenos Aires, Argentina. The discovery of a gun in a storage area is raising new questions about the death of the prosecutor. Nisman’s ex-wife Sandra Arroyo Salgado says the discovery of the prosecutor’s own weapon bolsters her contention that Nisman did not commit suicide, since he wouldn’t have needed to borrow the weapon that killed him. Investigators say are they investigating both homicide and suicide. (AP Photo/Natacha Pisarenko, File)

    FILE - In this March 18, 2015 file photo, demonstrators hold images of the late prosecutor Alberto Nisman during an act to demand justice after more than a month after his death, outside the court house in Buenos Aires, Argentina. The discovery of a gun in a storage area is raising new questions about the death of the prosecutor. Nisman’s ex-wife Sandra Arroyo Salgado says the discovery of the prosecutor’s own weapon bolsters her contention that Nisman did not commit suicide, since he wouldn’t have needed to borrow the weapon that killed him. Investigators say are they investigating both homicide and suicide. (AP Photo/Natacha Pisarenko, File)  (The Associated Press)

  • FILE - In this March 18, 2015 file photo, a demonstrator holds a sign that reads in Spanish "I am Nisman" during an act to demand justice following the death of special prosecutor Alberto Nisman, outside court in Buenos Aires, Argentina. Days before the three month mark since his mysterious death, Argentina's Supreme Court President Ricardo Lorenzetti urged investigators to solve the circumstances of Nisman's death on Monday, April 13, 2015. Nisman was found dead in his bathroom on Jan. 18, on the eve of congressional hearings where he was due to present his accusations against President Cristina Fernandez of shielding Iranian officials from prosecution over the 1994 bombing of a Buenos Aires Jewish centre. (AP Photo/Natacha Pisarenko, File)

    FILE - In this March 18, 2015 file photo, a demonstrator holds a sign that reads in Spanish "I am Nisman" during an act to demand justice following the death of special prosecutor Alberto Nisman, outside court in Buenos Aires, Argentina. Days before the three month mark since his mysterious death, Argentina's Supreme Court President Ricardo Lorenzetti urged investigators to solve the circumstances of Nisman's death on Monday, April 13, 2015. Nisman was found dead in his bathroom on Jan. 18, on the eve of congressional hearings where he was due to present his accusations against President Cristina Fernandez of shielding Iranian officials from prosecution over the 1994 bombing of a Buenos Aires Jewish centre. (AP Photo/Natacha Pisarenko, File)  (The Associated Press)

The discovery of a gun in a storage area raised new questions Wednesday about the death of prosecutor Alberto Nisman, a mystery that has rocked Argentina.

Nisman's ex-wife, Sandra Arroyo Salgado, said the discovery of the prosecutor's own weapon bolsters her contention that Nisman did not take his own life, since he wouldn't have needed to borrow the weapon that killed him.

Investigators say are they have not yet determined whether Nisman killed himself or was slain by someone else a few days after he had accused the president of covering up blame for the country's deadliest terror attack.

"This changes the investigation," Arroyo Salgado told local station Radio Mitre.

Lead investigator Viviana Fein disagreed.

"It doesn't change the investigation at all" because it wasn't the weapon that killed Nisman, Fein told radio Vorterix.

Arroyo Salgado and Fein have frequently fought, via declarations to local media, about the investigation. Arroyo Salgado has criticized the slow pace of the probe, and hired her own forensic team to comb Nisman's apartment. That team concluded that Nisman was killed.

Nisman's mother, Sara Garfunkel, found the gun recently in a storage room with her son's things and told Fein about it late Tuesday during sworn declarations.

Nearly three months since Nisman was found dead Jan. 18 nobody has been arrested.

Nisman, who for a decade oversaw the investigation into the 1994 bombing of a Jewish community center, launched allegations a few days before he died that President Cristina Fernandez had helped Iranian officials cover up their alleged role in the attack.

Fernandez has denied the allegations and Iran has long denied any role in the bombing, which killed 85 people. A judge recently rejected Nisman's report laying out his accusations against the president.

The gun that killed Nisman was loaned to him by aide Diego Lagomarsino, a computer technician who said the prosecutor asked for the weapon because he feared for his life and that of his daughters.

Investigators have said Lagomarsino is not a suspect.