Click here to access article by Robert Tait and Magdy Samaan and 0:31m video from The Telegraph.
This disturbing incident immediately brought to my mind earlier reports of such sniper incidents, especially targeting journalists, that occurred in Syria, Libya (see this), and Iraq. The use of snipers seems to be a pattern, and a tactic used by foreign militaries. Could they have learned this while attending the School of the Americas, sometimes referred to as "School of Assassins"?