Mohammed Hamzah Khan’s detention hearing in federal court in Chicago Thursday follows his Saturday arrest at O’Hare International Airport as he attempted to board a plane to Turkey.
Prosecutors filed a motion Wednesday evening asking Judge Susan Cox to close part of Thursday’s hearing to the public. Their explanation was itself sealed.
Investigators said Khan left a letter for his parents in his bedroom at the family’s Bolingbrook home expressing disgust with Western society.
He’s charged with attempting to provide material support to foreign terrorists. A conviction carries a maximum 15-year prison term.