FSA terrorists executed a captured Syrian man with a close range headshot from a heavy, .50 caliber DShK machine gun. The headshot caused the victim’s head to instantly explode and evaporate. The jihadists often used the DShK 1938 (Dushka) machine guns as anti aircraft weapons.
While this is without a doubt a savage way to execute someone and was without a doubt carried out for the sake of the show on camera, it counts as perhaps the fastest and the least painful way to die by the enemy hand. It certainly beats dull knife beheadings. The victim wouldn’t even hear the sound as his head exploded before it could reach him. Instant lights out.
Props to Best Gore member DerSteppenwolf for the video: