Warning: Viewers may find this footage disturbing. 12 people have died - including two cops - after three masked gunmen stormed the Paris office of French satirical newsmagazine Charlie Hebdo. Video shot by an eyewitness on a roof nearby - airing on French TV channels - shows masked gunmen shooting one of their victims at close range. (Video Courtesy: France 24)
NDTV has blurred the end where the man is shot.
