Yohen Cohen is one of four hostages killed when terrorist Coulibaly targeted the Hyper Cache supermarket in Porte de Vincennes in the east of Paris on Friday.

"The police said the terrorist threatened to kill a three-year-old boy and Yohan tried to stop it," his cousin Yonatan Cohen told Israeli media.

"He managed to grab the terrorist's weapon but before Yohan had a chance to shoot him, the terrorist put a bullet in his head and killed him on the spot."