Kennedy’s murder has sparked speculation and conspiracy theories for decades Archival documents prove that the Soviet Union was not involved in the assassination of US President John F. Kennedy, the head of Russia’s Federal Archival Agency (Rosarkhiv), Andrey Artizov, said in an interview with RIA Novosti on Thursday. Last October, at the request of US Congresswoman Anna Paulina Luna, the Russian Embassy handed over copies of declassified Soviet-era documents compiled by Russia’s state archives