Sandra Arroyo Salgado, Alberto Nisman's ex wife, commissioned an independent forensic investigation she says dismisses the possibility that his death was a suicide or an accident.
The judge ruled prosecutors' claims against President Cristina Fernandez de Kirchner failed to meet standards for an investigation. She was accused of covering up Iran's alleged role in a bombing.
The shooting death of Argentine prosecutor Alberto Nisman has all the hallmarks of a Hollywood thriller. It has provided rich material for the conspiracy-minded in Argentina.
The prosecutor investigating the death of Alberto Nisman denied the arrest warrant existed. She changed her story today, adding further proof of a tense relationship between the president and Nisman.
