Zachary Adam Chesser, the Fairfax man accused of aiding the Somali terrorist group al-Shabaab, will remain in jail.

In a detention hearing in U.S. District Court in Alexandria on Monday, Judge Ivan Davis said Chesser posed a significant risk to the community and denied him bond.

Davis cited Chesser’s online postings about how to manufacture explosives, his statements that he was willing to die for Islam, and his attempt to evade suspicion at the airport by bringing his infant son as evidence that “there are no conditions that will reasonably assure safety to the community” if Chesser were released.

Chesser, 20, was charged last week with providing material support to terrorists.

He earlier gained notoriety for warning the creators of the television show South Park that they risked death by mocking the prophet Muhammed on their shown.