The prosecutor's opinion flies in the face of the suicide hypothesis that has dominated the probe into Nisman's death in January 2015, days after he had accused the then president of covering up for Iran in the bombing of a Jewish center.
Here is a timeline of key events related to the mysterious death of Alberto Nisman in Argentina, a case that dredged memories of one of the worst terrorist attacks in Latin American history.
VICE News traveled to Buenos Aires to investigate the mysterious death of special prosecutor Alberto Nisman.
Coming soon: VICE News traveled to Buenos Aires to investigate the mysterious death of special prosecutor Alberto Nisman.
We spoke to Diego Lagomarsino, the aide who lent Alberto Nisman the gun used to end his life. In three months since the man investigating the AMIA center bombing was found dead, the case gets weirder and uglier.
The Secret Deal at the Heart of the Nisman Accusations Against Argentina’s Government: Fact or Fiction?
Prosecutor Alberto Nisman died before he could prove the president was aware of a deal to absolve Iran of involvement in the 1994 AMIA center bombing. The government, for one, says it cannot import Iranian oil.
The former head of the Intelligence Secretariat worked closely with Alberto Nisman, the prosecutor found dead after accusing Cristina Kirchner of a cover-up. Now he has been called to testify — and has a lot to tell.
Alberto Nisman was due to testify to parliament on Monday over his claims that Cristina Fernandez de Kirchner plotted to clear Iranian suspects in the 1994 bombing of a Buenos Aires Jewish center.