On Tuesday, the French army said that Soumana Boura, a senior member of the Islamic State in Niger, had been killed by its "Operation Barkhane" squad.
Boura was killed, according to the report, in an air attack on December 20.
The IS terrorist was a primary suspect in the murders of six charity workers, ages 25 to 31, and their two local escorts while visiting a nature reserve in August 2020. The assassinations had been claimed by a jihadist group.
Colonel Pascal Ianni, a spokesperson for the French army's general staff, told AFP that Boura had filmed the eight victims' executions in August and oversaw their dissemination.
Boura's execution comes four months after Adnan Abou Walid al-Sahrawi, the commander of the Islamic State's Greater Sahara branch (ISGS) and the claimed mastermind of the murderous attack on French aid workers, was killed by French forces.