Investigators learned that his flight was set for Dec. 4 from RDU with a return flight to the Triangle on Dec. 18. An FBI special agent noted that White likely purchased a round-trip ticket to avoid arousing suspicion, a common practice among Islamic extremists.

A Durham man was charged by federal authorities with supporting ISIS and later attempting to join the group, according to court documents that were unsealed on Tuesday.

The FBI has charged a Durham man with attempting to join ISIS, a recently-unsealed court document shows. Alexander Justin White, 29, also known as Sulaiman Al-Amriki, is charged with providing, attempting and conspiring to provide material support to a designated foreign terrorist organization,