Is it true: Lee Harvey Oswald's Soviet Defection and the KGB-Asset Claim?

Partly — it's more complicated than the claim suggests.

Oswald's USSR defection, KGB surveillance file, Soviet contacts in Minsk, and Mexico City meeting with a KGB officer linked to assassination operations are all documented facts. The inference from those facts to "Oswald was a KGB agent who assassinated Kennedy on Soviet orders" is not supported by declassified CIA, FBI, ARRB, or post-Soviet archival materials. The documented reality is partial and serious; the "Soviet-ordered hit" conclusion is not.