While serving his sentence at the Österåker Prison he became a friend of Kérim Chatty, who was suspected of attempted hijacking of a Ryanair flight in Västerås but cleared of all terrorism-related charges.
[5] Kassir was arrested in Prague, Czech Republic, while on his way to Beirut, on 11 December 2005, on a warrant filed by United States federal prosecutors.
Kassir and Aswat lived for several weeks at a Central District mosque before traveling to Oregon where they met up with the camp founder James Ujaama and several other persons.
[4] The complaint states that Kassir spent nearly two months in Bly, where he, according to unidentified witnesses, trained others to use firearms, set up perimeter patrols on the property and was "in possession of at least one compact disc about improving poisons.
[7] The verdict was commented by terrorism expert Magnus Ranstorp as showing differences in evidential requirements from EU courts[8] and was also criticized by civil rights activists.