![File - In this June 2, 2020 file photo, journalist Ruhollah Zam speaks during his trial at the Revolutionary Court, in Tehran, Iran. Iran. Tranian state television and the state-run IRNA news agency say Ruhollah Zam was hanged early Saturday, Dec. 11, 2020, just months after he returned to Tehran under mysterious circumstances. (Ali Shirband/Mizan News Agency via AP, File)](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/BLVSV6UNEP3NFUZ2467TY75D7U.jpg?smart=true&auth=3db8018394d603587ff5509bf7b40f94759e17f7e70dbf19aac229359d2e98fe&width=400&height=225)
Journalist Ruhollah Zam was executed in December in a case that showed how Iran was prepared to go after critics beyond its borders. AP
Journalist Ruhollah Zam was executed in December in a case that showed how Iran was prepared to go after critics beyond its borders. AP
Iran steps up campaign of violent threats against BBC Persian journalists
Staff leaving London office 'looking over their shoulders' and living in fear