Ahmad Shah Massoud was killed by the two men, suicide bombers posing as journalists, two days before the September 11 attacks.
After the Tunisian Revolution which overthrew Zine El Abidine Ben Ali, he was released from prison in March 2011 under an amnesty and founded Ansar al-Sharia (Tunisia) in late April 2011.
Despite the presence of a large number of security forces, a crowd of his supporters hid him and helped him evade the police cordon.
[5] In July 2015. an anonymous U.S. intelligence official told The New York Times that Ben Hassine was believed to have been killed near Ajdabiya in eastern Libya on June 14, 2015, in an American airstrike intended to target Mokhtar Belmokhtar.
In February 2020, al-Qaeda in the Islamic Maghreb leader Abdelmalek Droukdel announced Ben Hassine's death but did not say when he died.