A Salvadoran arms dealer caught transporting drugs in the D.C. region pleaded guilty Wednesday to supporting the Colombian terrorist organization FARC. Hector Antonio Martinez-Guillen, 32, pleaded guilty in federal court in Alexandria to attempting to provide material support to a designated foreign terrorist organization and carrying a destructive device during a crime of violence.

Martinez-Guillen was arrested in November at Washington Dulles International Airport. Prosecutors said he was traveling to the District to transfer a load of 20 kilograms — about 44 pounds — of cocaine to New York City at what he thought was FARC’s direction.