Ziggy Stardust
Absolutely Sane
I don't think any evidence would be sufficient for some people.
Quite an extensive explenation of their findings, thanks for posting.The preliminary report from the Dutch team said MH17 broke up in mid-air after being hit by "numerous objects" that "pierced the plane at high velocity" from outside the cabin and above the level of the cockpit floor.
In full on BBC news: http://www.bbc.co.uk/news/world-europe-28357880
What took them so long? Interesting question. Research on the ground in Eastern Ukraine was limited by continued fighting in the area. The debris was scattered over a 2km radius area. The so-called black boxes were initially not available. Thorough research of all data takes time. This is a preliminary report into what technically caused the crash.
That said Ukrainian cooperation, including the rebels, has been as good as could be expected under the circumstances. Identification of all bodily remains (repatriation of all of which too over 1 week) has, as far as I know, been concluded, giving all surviving relatives the possibility of closure.