** FILE ** In this Sunday, March 3, 2013, image taken from video obtained from the Shaam News Network, which has been authenticated based on its contents and other AP reporting, a Syrian rebel fighter stomps on a picture of Syrian President Bashar Assad within the police academy complex in Khan al-Asal, in the provence of Aleppo, Syria. (AP Photo/Shaam News Network via AP video)

Photo by: Uncredited

** FILE ** In this Sunday, March 3, 2013, image taken from video obtained from the Shaam News Network, which has been authenticated based on its contents and other AP reporting, a Syrian rebel fighter stomps on a picture of Syrian President Bashar Assad within the police academy complex in Khan al-Asal, in the provence of Aleppo, Syria. (AP Photo/Shaam News Network via AP video)