Updated

An 18-year-old who allegedly visited a sham FBI website to express interest in joining an al-Qaida-affiliated group in Syria is set to appear in a Chicago federal court.

Abdella Ahmad Tounisi's appearance Tuesday follows his arrest at O'Hare International Airport as he prepared to board a plane.

The Aurora teenager allegedly wrote to an FBI agent posing as a terrorist recruiter that he was willing to die but had no fighting experience.

He's charged with attempting to provide material support to terrorism.

The complaint says Tounisi's a friend of Chicago-area teen Adel Daoud. Daoud is awaiting trial on charges he tried to detonate what he thought was a bomb last year outside a Chicago bar.

Tounisi's father, Ahmad Tounisi, has said his son would not have done what authorities allege.