over. the fact we were fired at first and we over. the fact we were fired at first and we retaliated - over. the fact we were fired at first and we retaliated and - over. the fact we were fired at first and we retaliated and the| first and we retaliated and the only way possible to us, which was returned fire. jack chapman was returned fire. jack chapman was a crucial was returned fire. jack chapman was a crucial eyewitness. - was returned fire. jack chapman was a crucial eyewitness. all. was a crucial eyewitness. all the was a crucial eyewitness. fill the shooting was done by the army. t the shooting was done by the arm . , ~ army. i interviewed derek wilford in army. i interviewed derek wilford in 1992 army. i interviewed derek wilford in 1992 on - army. i interviewed derek wilford in 1992 on the - army. i interviewed derek| wilford in 1992 on the 20th anniversary of bloody sunday. t anniversary of bloody sunday. i actually said to my soldiers, you will not get killed. if som