moved a heavy arsenal of weapons into place days before the crash. >> we have a video showing a launcher moving back through a particular area there out into russia with it missing, at least one missing missile on it. so we have enormous input about this which points fingers. >> reporter: this is that video posted by ukraine's interior ministry of a missile launcher heading back into russia, suggesting it had conducted a launch according to the u.s. embassy in kiev. i spoke with the rebel prime minister about those occasions. >> the belief of the western community and ukraine is that a russian missile brought down this plane, and there's suspicion it had something to do with fighters from your region. what do you want to say to people who believe that? >> translator: i don't know what to say because the world community doesn't want to hear it. we had no reason to take down