Is the Robert Capa's photo fake?

http://www.bbc.co.uk/blogs/photoblog/2009/07/the_whole_story.html

"So it's a fake. Or at least that's the claim by Spanish newspaper El Periodico and followed up in The Independent amongst others.

Robert Capa's picture (above) is known as the falling soldier and is allegedly of a man's last moments during the Spanish Civil War in September 1936. It's a picture that has confounded critics and historians for many years.

..."