A brief surveillance video appears to show gunmen in a Mumbai, India, hotel during coordinated attacks on several locations in November that killed more than 160 people, including many foreigners. CNN has been unable to authenticate the video, which lasts for less than 20 seconds, but CNN’s sister network CNN-IBN said it received the video from police. In the video, two gunmen walk through what may be a lobby at the Hotel Trident, and another gunman shoots at what appears to be an empty reception desk