 This happened during the riots in the last days of March 2020, due to spread of coronavirus in Iran.In the 1990s there were a number of unsolved murders and disappearances of intellectuals and political activists who had been critical of the Islamic Republic system in some way.In 1998 these complaints came to a head with the killing of three dissident writers (Mohammad Jafar Pouyandeh, Mohammad Mokhtari, Majid Sharif), a political leader (Dariush Forouhar) and his wife in the span of two months, in what became known as the Chain murders or 1998 Serial Murders of Iran.