 Image copyright AFP Image caption Mohammed Musallam's parents said he had he left for Syria four months ago without telling them 
 
 Islamic State (IS) militants have posted a video online which appears to show a young boy shooting dead an Israeli Arab prisoner. 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.
– More horror from ISIS' media wing: A boy who appears to be no older than 12 shoots dead an alleged Israeli spy in the latest video released by the militants. The video shows an older, French-speaking militant threatening Jews before the boy shoots a man identified as Muhammad Said Ismail Musallam, a 19-year-old Israeli Arab, in the forehead, the BBC reports. The older militant describes the boy as a "lion cub of the caliphate" in the video, which also shows Musallam confessing to spying on ISIS for Israel, reports Reuters. Israeli authorities say Musallam was not a spy but an ISIS recruit, which his father confirms to CNN from his home in East Jerusalem. The teenager was promised "girls, money, cars, villas, paradise," but tried to leave when he "discovered that there is nothing" and was captured as he tried to return home, the father says. Separately, an ISIS defector now in Turkey has explained why some hostages seem calm in beheading videos the group has released. In an interview with Sky News, the defector claims foreign hostages were subjected to many filmed mock executions before they were finally killed, and part of his job as a translator for ISIS was to convince the Westerners that they would not be harmed and the videos were only to put pressure on their governments.