Kremlin critics: What happens to Putin’s most vocal opponents? - Al Jazeera English
- Kremlin critics: What happens to Putin’s most vocal opponents? Al Jazeera English
- The mysterious, violent and unsolved deaths of Putin’s foes and critics The Guardian
- Poisonings, plane crashes and falls from windows: What happened to Putin's most vocal critics Sky News
- Who are the other opposition activists jailed in Russia? Reuters
- The mysterious fates of Vladimir Putin's critics and rivals The Independent