He lurched forward and fell. He was pronounced dead immediately. We then effected our extraction." By 1964, the Deer Gun was listed in the CIA's special weapons inventory and carried a regular stock number, meaning it was cleared for field issue. That stock number was 139-H00-9108. Several researchers and experienced military operations people have speculated on the origin of the Deer Gun name. Sgt Gary Paul Johnston suggests that it is an Agency code name with sardonic reference to a survival weapon. Suppressor designer Don Walsh, a longtime friend of Russ Moure, thinks the weapon was named after a World War II OSS operation, the mysterious Deer Mission business in Burma. The genesis of their name appears to be as mysterious as the ultimate fate of the weapons themselves. Of those original 1,000 weapons, only 20 to 25 remain in circulation today, according to collector/ historian Keith Melton. The majority was destroyed by the government through orders reportedly issued directly from the White House, Melton and others feel. The rest seem to have just plain disappeared, meaning, probably, that they were liberated by individuals. After AMF, Russ Moure went to work for Firearms International as chief engineer. Later, he joined Interarms as vice president of engineering. Moure died during the winter of 1986/87 when, after stopping to help a stranded motorist near Washington, he was struck and killed by another vehicle.