According to the info I got, this happened in Jordan. The video shows a group of people apparently killing time by shooting guns from a balcony.
They seem to generally enjoy themselves, when one of the guntoters suddenly turn the gun in his hand on himself and shoots himself with it in the head, committing suicide in front of his friends. Only seconds earlier, he fired a few shots into the emptiness… Maybe he thought his head was as empty as the space in front of the house?
Props to Best Gore member @momox for the video: