Busted! Feds Arrest Man Behind 'South Park' Threats

The online poster who reportedly threatened the animated comedy's creators is now under arrest for allegedly supporting a foreign terrorist group.

Federal authorities in Virginia have arrested the man who allegedly wrote online posts threatening the creators of South Park after the show ran an episode that included the Prophet Muhammad.

The Justice Department announced the arrest of 20-year-old Zachary Chesser Wednesday, saying authorities had stopped him at a New York airport on July 10 before he made a planned trip to Somalia to allegedly try to join an Islamic militant group.