The FBI has arrested the Virginia man who posted a “warning” to South Park creators Matt Stone and Trey Parker on a radical Muslim website back in April, after he told federal agents of his plans to travel overseas and join a terrorist group. Zachary Chesser, described as a 20-year-old “university dropout,” was apprehended while attempting to board a plane at a New York airport despite being on a no-fly list, after which he spoke at length with FBI agents about his connection to al-Qaeda associate group Al-Shabaab, which he intended to join in Kenya or Somalia.