A head wound suffered by the Red Baron the year before his death was the underlying reason he was eventually shot down, according to a study by neuroscientists. There has been endless speculation over who killed the 25-year-old First World War flying ace but the new study suggests that more credit is due to the British airman who grazed his skull in 1917 than to the Australian gunner who eventually brought him down in 1918. The killing machine feared by the Allies and revered by his countrymen suffered significant brain damage to his frontal lobes when a machinegun round fired...