The FBI memo, citing the unnamed source, says "Soviet officials claimed that Lee Harvey Oswald had no connection whatsoever with the Soviet Union. They described him as a neurotic maniac who was disloyal to his own country and everything else."
The same single source reported that the KGB, the Soviet intelligence agency, "issued instructions to all of its agents to immediately obtain all data available concerning" President Lyndon Johnson. The memo said that in the months after Kennedy's death, the KGB had come into "possession of data purporting to indicate that President Johnson was responsible for the assassination of the late President John F. Kennedy."
A
different memo, this one from the CIA director of security to CIA headquarters, originally classified "Secret" and dated March 11, 1964, refers to a George M. Lesnik, a former KGB agent who was in Moscow on the day of the Kennedy assassination.
After hearing the news, Lesnik "dashed to his office" to look at Oswald's file. "When he found the file he reviewed it and found that Oswald had not been used or even approached for use by the Russian intelligence." Lesnik said that he then called others in the KGB, who said they were unaware of Oswald's having been cultivated in any way before returning to the United States.