Jewish prosecutor Alberto Nisman was apparently murdered after he had alleged in a stunning accusation that Cristina Fernandez reached a secret deal with the Iranian government to cover up the role of several Iranian officials suspected in the 1994 bombing of a Jewish community center in Buenos Aires.

In yet another twist in the Nisman murder investigation, a judge has passed the case to a federal court after initially opposing such a move. It is unclear why she agreed.

Jewish rights groups gathered in several Argentine cities on Monday to mark the first anniversary of prosecutor Alberto Nisman's death. Nisman was found dead in his apartment with a bullet to his head. He was investigating the 1994 bombing of a Jewish community center that killed 85 people.

Argentine President Mauricio Macri has ordered the declassification of all files related to last year's death of prosecutor Alberto Nisman.

The plot thickens: The journalist who first reported on the death of the Argentinian whistle blower has fled to Israel in fear for his life.

An Argentinian prosecutor who proved Iranian and Hezbollah involvement in the 1994 bombing, was shot in the head just before testifying.