"The murdering and thieving government killed Nisman" - a sign at a demonstration in Buenos Aires protesting the death in suspicious circumstances of Alberto Nisman. Photo: The Algemeiner

Argentine investigators have discovered unidentified finger and footprints in an outdoor passageway connected to the apartment of Alberto Nisman, the State Prosecutor in charge of the investigation into the 1994 bombing of the AMIA Jewish Center in Buenos Aires, who was found dead in his bathroom from a gunshot wound on Sunday.

While the Argentine government insists Nisman’s death was a suicide, evidence has emerged over the last two days which casts doubt on that claim. In the latest intriguing development in the case, the newspaper El Littoral reported that investigators had found a third point of access into Nisman’s apartment. Previously, the Argentine authorities had said that there were only two entry points to the apartment, one through the main door and the other through the service entrance.

The passageway where the prints were discovered contains air conditioning units that are connected to each apartment in the luxury Le Parc residence in Buenos Aires where Nisman lived. Small metal doors are located at each end of the passageway, and investigators are currently trying to establish whether one of these could have been used to enter Nisman’s apartment.

A floorplan shows the location of the passageway in relation to Nisman's apartment. Image: infobae

The prints have now been sent for analysis. Investigators cautioned that they could belong to a repairman sent to service the air conditioning units.

Both Nisman’s death and its aftermath has gripped Argentina, with the main argument centering on whether he committed suicide. Several friends and relatives have confirmed that they saw no signs that Nisman was preparing to take his own life.

Congresswoman Cornelia Schmidt-Liermann said she had planned to pick Nisman up at his residence on Monday and accompany him to a congressional commitee, where he was scheduled to outline his claim that senior Argentine officials, among them President Cristina “‹Fernández de Kirchner and Foreign Minister Héctor Timerman, had deliberately covered up the involvement of Iran and Hezbollah in the AMIA bombing. 85 people were murdered in the attack, in the worst antisemitic atrocity since the Second World War.

“Everybody who had contact with him the last 24 hours says he was confident,” Schmidt-Liermann told the Associated Press. “There is no indication, under any circumstances, that he killed himself.”

DAIA, the Argentine Jewish communal body, will be holding a demonstration at the AMIA headquarters in Buenos Aires later today. Under the slogan “For Truth and Justice,” DAIA will demand transparency from the government over Nisman’s death.