At least 527 people have been killed in Iran since the beginning of the anti-government demonstrations more than four months ago, said a report by the US-based Human Rights Activists News Agency on Sunday. Among them were 71 minors and 70 members of the police and other security forces, according to the group’s tally. In total, nearly 20,000 people have been arrested. More than a hundred of them are facing death sentences. Several demonstrators have already been executed. The wave of nationwide demonstrations were triggered by the death in police custody of Mahsa Amini on September 16, 2022. T…