mechanic for american airlines tried to travel to syria to join isis. also he was in the air force for several years, where he trained in the installation of aircraft engines and weapons systems. people in law enforcement say that's concerning because he could have brought his expertise to the expert group if he made it over to syria to join isis as authorities allege in this criminal complaint. according to that complaint, a few left the service in the '90s and worked in the middle east as an airplane mechanic. he flew in january to turkey to dry to cross into syria. officials questioned him and according to court documents, he told them he was a pilot with u.s. special forces and he was in turkey to vacation. however officials denied him entrance after he refused access to his electronics. the criminal complaint said his electronics had been tampered