How customer in kosher deli in Paris was executed when he grabbed one of terrorist's guns and it JAMMED

A heroic customer at the kosher supermarket in Paris snatched one of the terrorist's guns and turned it on the hostage taker - only to find it was jammed, leaving the extremist to execute him in cold blood, according to a survivor who fled the shoot-out as armed police officers and soldiers raided the store yesterday.

Mickael B, as he wishes to be known, was held in the store with his three-year-old son when the fellow hostage suddenly grabbed the weapon which had been left on the counter. But, after discovering the gun had been left there because it was malfunctioning, terrorist Amedy Coulibaly (inset) shot and killed the hostage. Meanwhile footage has emerged of the moment French commandos launched flash grenades into the grocery store before hostage taker Amedy Coulibaly was gunned down last night.

Dramatic video shows the moment the ISIS fanatic sprints towards the store's exit as police officers aim guns at him. Moments later the video shows terrified captives running for safety. It comes as it was revealed that the jihadist had slaughtered four hostages before officers launched the raid, with one pictured on the ground. Images have emerged of Coulibaly's bloodied body lying on a pavement after the siege had come to a dramatic end.