Gunmen killed 21 people in attack on National Bardo Museum in Libya . Two were killed by police and third is now believed to have been killed . Abou Sakhr Lokman is one of nine people killed in overnight armed raid . He is believed to have been involved in museum terror attack that saw foreign tourists killed and was one of Libya 's 'most dangerous terrorists '
Gunmen killed 21 people in attack on National Bardo Museum in Tunisia . Two were killed by police and third is now believed to have been killed . Abou Sakhr Lokman is one of nine people killed in overnight armed raid . He is believed to have been involved in museum terror attack that saw foreign tourists killed and was one of Tunisia 's 'most dangerous terrorists '