Argentine prosecutor Alberto Nisman's ex-wife has claimed that independent forensic tests show he was murdered.
The investigator had accused the president of plotting to cover up Iran's alleged role in a 1994 bombing.
Nisman was found dead, a bullet in his head and pistol by his side, at home in Buenos Aires in January.
The investigator had accused the president of plotting to cover up Iran's alleged role in a 1994 bombing.
Nisman was found dead, a bullet in his head and pistol by his side, at home in Buenos Aires in January.