The call is real, but it’s about two European officials speculating about hearsay from a woman named Olga who claims to have evidence that it was the protestors who had themselves shot. Not exactly an admission of guilt there.
And it was Russia Today (New Pravda) who leaked this call, I wonder where they got it from?
Last major case I remember reading about of guys being willing to kill some halfway large number of their own people to achieve some end was the thing about SlicKKK KKKlintler, Izetbegovic, and their 5000 dead bodies.