People holding a sign that reads in Spanish "We are all Nisman," protest the death of special prosecutor Alberto Nisman, outside Congress in Buenos Aires, Argentina, Monday, Jan. 19, 2015. Nisman who accused the government of secret deals with Iran over an investigation into a 1994 Argentine-Israeli Mutual Association community center terrorist attack, was found dead with a gunshot wound, at his apartment early Monday. Nisman was due to participate in a closed-door session with Congress Monday over his claim last week that Argentine President Cristina Fernandez and Foreign Minister Hector Timerman covered up a deal with Iran. (AP Photo/Rodrigo Abd)
BUENOS AIRES, Argentina (AP) – 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 Fernández 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.
Late in January, the lead investigator in the case said testing found traces of DNA only belonging to Nisman.
Investigator Viviana Fein said that traces of DNA found on the pistol, its ammunition and other items from the scene "undoubtedly" matched that of Nisman.
She also said a security camera in the service elevator of his apartment building was not working and there were no cameras in its stairwell.
Supporters of Nisman have insisted the prosecutor would not have killed himself and even Fernández has said that, contrary to initial findings, his death could not have been a suicide.
Nisman had feared for his safety and 10 federal police were assigned to protect him. The officers were suspended as part of the investigation but none have been named as suspects.
Fernández has denied any connection to the 1994 bombing, which killed 85 people and remains unsolved.
Fox News' "Antisemitism Exposed" newsletter brings you stories on the rising anti-Jewish prejudice across the U.S. and the world.