
The 21-year-old Tunisian national, was shot and seriously injured by police after the October 29 attack. He was placed under formal investigation after his condition in hospital improved, allowing him to be questioned.
France last month raised its attack alert to the highest level after the Nice killings, which came two weeks after the beheading of history teacher Samuel Paty by an 18-year-old Chechen refugee for having shown his pupils cartoons of the Prophet Mohammed during a lesson on freedom of speech.
Aouissaoui had arrived in Europe from Tunisia in September, first crossing the Mediterranean to Italy and then crossing into France overland.
He was shot several times by police after his killing spree.
Comment: Note that the terrorist was known to authorities and should have been deported but was instead set free, as was the terrorist who killed four in Austria in November - there is surely more to the events than sheer coincidence: Strasbourg Shooting: Everybody Knows Where Terror Comes From