Syria: Man appears to film himself being shot by sniper

YouTube video follows footage of 'activist and blogger' Diyya al-Najjar being shot in the head by security forces in Homs

Shocking video footage has emerged from the Syrian city of Homs in which a young man filming gunfire in the streets appears to be shot dead in cold blood by the sniper he zooms in on.

A clip circulating on YouTube begins with a male voice describing "someone shooting at citizens in Karm al-Sham on 1 July without any reason and no demonstrations."

The cameraman is filming from an upper floor against a background of slogans being chanted. Jerky images of the street and balconies are followed by a blurred glimpse of a man in olive green, standing in the shadows, carefully moving forward and raising and firing a weapon – followed by a single shot, moaning, and distraught voices pleading for help.