According to court records, Conrad was introduced to the Hungarian secret service in 1975 by his supervisor in the 8th Infantry Division, former U.S. Army Sergeant First ClassZoltan Szabo. Szabo, who was convicted of espionage in Austria in 1989, received a 10-month suspended sentence in exchange for assisting in the investigation by identifying some of the documents Conrad sold to the Hungarians. Among the documents sold by Conrad were the wartime general defense plans of many units, containing the precise description of where every unit was to go in case of war, and how they would defend. Conrad was originally recruited by Szabo, a Hungarian émigré who served in the U.S. Army as both an NCO and an officer before becoming a colonel in the Hungarian Military Intelligence Service, shortly before Szabo retired from the U.S. military. It is still unknown today how many people participated in the Szabo-Conrad spy ring, but it is known that their espionage activities lasted for several decades. Four others were later convicted on espionage charges in Florida for involvement with Conrad’s spy ring:
Roderick James Ramsay, sentenced in August 1992 to 36 years imprisonment.
Jeffrey Rondeau and Jeffrey Gregory, who were sentenced in June 1994 to 18 years imprisonment each.
Conrad's method of recruitment was usually attempts to appeal to enlisted Army personnel, promising them large amounts of money for supplying him with intelligence reports. Ramsay alleged to the FBI that Conrad had recruited dozens of personnel, including at least one member of the Army's counter-espionage branch, and at least one officer who later became a general.
Arrest and aftermath
Conrad was arrested in 1988 by West German authorities and tried for high treason and espionage on behalf of the Hungarian and Czechoslovakian intelligence services. Conrad was convicted by the Koblenz State Appellate Court on June 6, 1990 of all charges and was sentenced to life imprisonment, fined 2 million marks, and ordered to forfeit all proceeds from his activities. German prosecutors said that the documents Conrad leaked—dealing with troop movements, NATO strategy, and nuclear weapons sites—eventually made their way to the Soviet KGB, while Chief Judge Ferdinand Schuth, who presided over the case, concluded in the verdict that because of Conrad's treason: Conrad died of a heart attack at the age of 50 in Diez prison on January 8, 1998. Of all Americans convicted of espionage, Conrad is one of only five spies to have been considered to have made "big money", alongside Aldrich Ames, Larry Wu-Tai Chin, Robert Hanssen, and John Walker.
