An Argentine prosecutor found dead in mysterious circumstances last month had drafted a request that President Cristina Fernandez be arrested for conspiring to derail his probe into the deadly bombing of a Jewish centre, the investigator into his death said.

The man who gave Argentinean prosecutor Alberto Nisman the pistol that killed him said Nisman feared for the safety of his daughters and did not trust the policemen protecting him.

Argentine president Cristina Fernandez said she’s “convinced” prosecutor Alberto Nisman did not commit suicide as more questions arose into the death of the man who had accused the president of a cover-up in the nation’s worst terrorist attack.

A special prosecutor who had accused Argentine president Cristina Fernandez of ordering impunity for Iranian suspects in the South American country’s worst terrorist attack has been found shot dead, authorities said.