Shortly before he and a friend gunned down 20 foreign tourists — including three Japanese — on Wednesday at the Bardo National Museum in Tunis, Yassine al-Abidi sat down to a breakfast of olive oil and dates with his family and left for work at his travel agency as usual.

His relatives, mourning his death in a hail of police bullets in the midst of the attack, said they could not understand how a lively, popular young man with a taste for the latest imported clothes, could have done such a thing.

They said he was typical of the young men of Tunis' Omrane Superieur suburb.