The jury in New York Federal Court found Russian reputed arms dealer Viktor Bout guilty on all four charges, RIA Novosti reported.
All 12 jurors unanimously agreed to find Bout guilty of conspiracy to kill U.S. officials and nationals, conspiracy to sell missiles and conspiracy to support terrorism by cooperating with a Colombian terrorist group.
The former Russian military officer denied all charges against him.
The Federal New York District Court will announce the sentence for Bout on February 8.
Bout may face from 25 years to life in prison.