Police have released dramatic video of yobs shooting at unarmed police on the ground and in a hovering helicopter during the height of the riots.An attempted murder investigation has been launched after 11 shots were fired as police as they tried to control the disorder in the Birmingham suburb of Newtown late on August 9.Officers had to duck for cover as petrol bombs were also thrown after money and alcohol was stolen from the Bartons Arms and it was set alight.Dangerous: This footage, taken from a police helicopter, shows a masked man pointing a gun up at officers Who is he? Police have released the footage in the hope members of the...