The ibtimes site claims that the guy in this image is Igor Girkin, also know as 'Strelkov":
Igor 'Strelkov ' Girkin (C) pictured in Visegrad in 1992 along with a Russian mercenary and a Bosnian Serb commanderwww.klix.ba
Link to the article:
Is there any evidence that this is true?
As of now, searching for "Strelkov" on Google leads to this article, as the first result.