Terrorist organization "Islamic State" published the video, which shows brutal murder "Russian spy".
As the channel NBC, the video is named "You will be disappointed and humiliated, the Russians."
According to NBC, on the video is an unknown man kneeling in front of another man, who has the knife. A man with a knife without a mask on his face says: "What is to be Russian," then cuts off hostages head.
Unveiled a short video channel NBC.