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.

Durham resident Alexander Justin White, who allegedly sought to join ISIS, was described as 'very secluded. Very quiet.'

A North Carolina man was arrested in December after he was accused of wanting to join ISIS, federal court documents revealed. According to an affidavit, the man – 29-year-old Alexander Justin White – lived in Durham.

A North Carolina man is facing charges for trying to join ISIS. ALSO: Durham woman admits to falsely accusing Duke lacrosse players of rape in 2006. According to federal court rec