A gunman killed three people in southwestern France on March 23.
The gunman held up a car, opened fire on police, and then took hostages in a supermarket.
Police later stormed the supermarket and the attacker was killed.
The 26-year old attacker was identified as Redouane Lakdim.
The ISIS terrorist group claimed responsibility for the attack.
French President Emmanuel Macron called it an act of "Islamist terrorism".