Hi Otis,
I've heard that one --it started a long time ago i believe (not exactly a 'new' theory, although that is probably to strong a word for it).
Came about perhaps because of a dis-belief that their leader could be dead (in the immediate aftermath)---coupled with the knowledge that the Triplane had made a relatively good crash landing.
Canadian troops got the blame, if i remember this one correctly!
It puzzled me when i first picked up the story some years ago--because the bullet that killed him is believed to have done so very quickly....ergo, could'nt have been
Roy Browns because he flew on after that attack---but if it was ground fire and yet he was still alive ---to be murdered--that is what was claimed when i read it---on landing, well how did he stay alive long enough to land and still need 'murdering'??? Might as well go right back to Roy Brown as victor---because the 'could'nt have lived long enough to bring of a good forced landing' now seems questionable.
Truth, for me, is we will never know --beyond all doubt---who fired the fatal shot---but my BELIEF is that he was'nt 'murdered on the ground by Canadians.
Will it never end--this quest for understanding
Dave.
EDIT--I have'nt seen the Documentary Otis---but anyway, don't have all that much time for T.V. history---mostly, though there are exceptions. Part of the title of this thread is 'let's count the mistakes'----I'll take my chances with any book by a reputable author and live with minor errors compared to what you would get from 9out of 10 so called 'history' programmes on T.V.