http://www.kyivpost.com/content/ukraine/journalists-find-solid-russian-ties-to-missile-that-hit-mh17-371161.html
After analyzing a massive volume of data from open sources, a team of British investigative journalists has found “solid information” that the Buk missile system that downed Malaysian Airlines flight 17 in July came from Russia, and was sent back there after the disaster. They also traced the Buk’s military convoy back to its base in Russia.