New ISIS video claims to show child killing Palestinian captive

A newly released ISIS video shows a child shooting a man the group claims is an Israeli spy.

The video identifies the man as 19-year-old Mohamed Said Ismail Musallam, an Israeli citizen of Palestinian descent.

In the video, ISIS shows Musallam's Israeli passport and claims he's an agent sent to infiltrate the group. The 19-year-old's family told CNN Tuesday that he had no ties with the Mossad, Israel's spy agency, and had, in fact, been recruited by ISIS.

"Mohamed told me and his brother that ISIS took him," according to Said Musallam, his father. "They sent him money through the Western Union. They said you will have girls, money, cars, villas, paradise, but afterwords he discovered that there is nothing."

It wasn't long before Musallam's family members didn't recognize him when they talked to him on Skype. The man they knew as a kind and funny brother and son who was once a volunteer firefighter had grown a long beard and was carrying a rifle.

His father tried to help him get home, sending him money and even enlisting the Red Cross. But his son never made it back to Israel. About a month ago, Said Musallam said, he was told his son was taken by ISIS when he was on his way back and trying to cross the border.

A video posted Tuesday on ISIS-affiliated social media accounts shows a man who appears to be Musallam on his knees, wearing an orange jumpsuit.

An adult ISIS fighter and a child -- both in fatigues -- stand behind him.

The adult, speaking French, gives a command to the child to go forward with the killing. The child steps in front of the man and raises what appears to be a 9 mm semiautomatic handgun and shoots Musallam in the forehead. The man immediately falls forward to the ground. The child appears to then fire at least two more shots into the body.