A teenager from a Chicago suburb has been arrested for allegedly attempting to join a terrorist organization.

Last year 18 year old Adele Daoud was arrested after plotting with undercover FBI agents to bomb a downtown Chicago bar.

Now, according to the FBI, one of Daoud’s accomplices, 18 year old Abdella Ahmad Tounisi, was planning to head to Syria to aid an Al Qaeda affiliated group.

Tounisi, was arrested Friday night as he tried to board a flight from Chicago’s O’Hare International Airport to Turkey.

Tounisi, a U.S. citizen from the suburb of Aurora, was charged Saturday with one count of attempting to provide material support to a foreign terrorist organization.

According to the criminal complaint, Tounisi carried out research online about Jabhat al-Nusrah, or Nursa Front. Nusra Front is the most effective rebel faction fighting Syrian President Bashar Assad’s regime. The group is affiliated with al-Qaida in Iraq.