At the trial's opening earlier this week, defense lawyer Sarah Mauger-Poliak said El Khazzani โregrets having allowed himself to become indoctrinatedโ by extremist propaganda.
Authorities say El Khazzani boarded the train in Brussels armed with the Kalashnikov, nine clips with 30 rounds each, an automatic pistol and a cutter.
Once aboard the train, El Khazzani lingered in a restroom between cars and then emerged bare-chested with his weapons, according to investigators.
His wife, Isabelle, said subduing El Khazzani was "a five-man jobโ and that she regarded her husband as a hero.
With the attacker under control, the train rerouted to Arras, in northern France, where El Khazzani was arrested.