It was reported that the rebels bragged about the downing on the Russian version of Facebook, before deleting the post. In that post, the rebels wrote about shooting down a Ukrainian military cargo plane. Now they deny shooting it down.
Also: it is possible that there were 23 Americans on the board.
Also #2: Russian troops control accident site.
BTW: Does anybody still believe that Russians did not shoot down Polish plane with Polish President, know Putin's enemy, on the board in 2010?