The FBI has released surveillance video of the Washington Navy Yard gunman stalking the corridors as he searches for victims.<br /><br />It shows Aaron Alexis entering the base armed with a shotgun, prowling the corridors and checking if a room is empty.<br /><br />Thirteen people were shot dead in the September 16 attack including the assailant Aaron Alexis.<br /><br />...<br />http://www.euronews.net/
