I seem to remember there was some controversy about it .... here's another photo .... what a way to die ! http://www.flickr.com/photos/29007475@N08/3285715219/sizes/l/in/pool-41806985@N00/
"The Eagle of Lille", ObLt Max Immelmann, Pour Le Merite, the leading ace of the world at the time with 17 victories (level with his friend Oswald Boelcke), was killed in his Fokker EIII on June 18th 1916 in combat with FE2bs of 25 sqdn. The RFC claimed that he was shot down by 2/Lt McCubbin and Cpl Waller. The Germans claimed that his synchronisation gear failed and he shot off his own propeller. The latter is quite possible - he had survived such an incident a few days before. His aircraft was seen to oscillate from side to side, the tail broke off, then the wings detached and the fuselage impacted the ground at high speed. Such an oscillation could well be caused by the vibration of an imbalanced broken propellor, but whether this was caused by his own bullet or an enemy one we will never know. The photos probably show the wreckage gathered together rather than how it was found.