“He was a judge in name only, but in reality, it has been a tool of oppression to free information and the media in Iran,” said Reza Moini, the head of the Iran department of Reporters Without Borders.
Mr. Mansouri has published a video recording of himself on 8 June, after he had reached Germany, saying that he had come for medical treatment, and that he will return to Iran and take part in the trial. He was soon arrested in Romania.
The secretary-general of Reporters Without Borders, Christophe Deloire, said in a Twitter message Friday that the sudden death of Mr. Mansouri, on account of his complaint against him for acts of torture, arbitrary detention and persecution, was a “denial of justice”.
Mr. Moini said that the organization was calling for a transparent investigation to answer why and how Mr. Mansouri was dead, and that he has not ruled out the possibility of murder.
“The Islamic Republic could have an interest to kill him, he and his co-defendants because of what he knew,” Mr. Moini said.