 He also appears to have been responsible for a bizarre last-ditch plot in which a group of students, led by a man named Hem Keth Dara and posing as a faction of the Khmer Rouge (under the title of "Monatio", or the 'National Movement') attempted to seize key parts of the city ahead of the actual Communist forces.Soon after, Koy Thuon, a Khmer Rouge deputy front commander, organized the "Committee for Wiping Out Enemies" at the Hotel Monorom ().Its first action was ordering the immediate execution of Lon Non and other leading government figures, who were probably executed on the grounds of the "Cercle Sportif" in Phnom Penh within hours.