Before identity of plane surfaces: separatists had announced the capture of the missile system used in this attack last month already, separatist commander brags about shooting down the plane on twitter immediately after it happened.
After it comes out that it was a Malaysian passenger plane: separatists deny they have the capability to perform such a strike, blame it on an Ukrainian fighter jet, try to delete tweets re: captured missile system and shooting down the plane.
I love it. Reminds me of the Iraqi information minister back in 2003.