An army bomb disposal specialist who was killed while trying to defuse an improvised explosive device in Afghanistan has joined an elite band of soldiers awarded a second George Medal.Warrant Officer 2 Gary O'Donnell, 40, of the Royal Logistic Corps, won his second George Medal posthumously for “repeated and sustained acts of immense bravery”, the Ministry of Defence said. It was the first award of a Bar to the George Medal in 26 years.He was awarded his first George Medal, second only to the Ge