Of course, it’s still too early to say definitively what happened but this is a personal blog, not a newspaper article or a government report, so I have the space to vent and express what I think rather than what I know. So, here goes.
Although I wish it were otherwise, I feel the overwhelming odds are that MH17 was shot down by a Buk-M1 surface-to-air missile fired by the rebels (but supplied by the Russians):
1. The rebels, notably generalissimo Strelkov actually claimed to have shot down a government An-26 in the general area of the MH17’s demise. The social media claims in question have been retrospectively deleted, but in this age nothing is truly lost.
2. The rebels have shot down other government planes and indeed there is strategic merit to their denying their airspace to Kyiv’s forces, given that air power is one of the government’s real advantages. If they thought the MH17 was a government plane, then this might have seemed a great opportunity.
3. MH17 was flying too high for the man portable and light vehicle-mounted SAMs the rebels have openly deployed, but recently they admitted–and again these claims seem to have been retracted–to having at least one Buk-M1 SAM system, a tactical battlefield system that has the range to claw a civilian airliner out of the sky, and the warhead to do it with one hit.
4. The Buk is a radar-guided missile, so it could quite possibly have been launched without any eyeballing of the target. Furthermore, while the rebels may have the Buk’s radar targeting system, they lack the extensive radar network and, above all, the skilled sensor operators who might have been able to tell a passenger airliner from a government troop plane.
5. The pattern of wreckage, the state of the corpses, suggests a catastrophic in-air impact and then rapid descent, not a crash from engine or system failure. Again, this speaks to a missile attack, and there do not seem to have been Russian or Ukrainian fighter jets in the air near there. So, again we’re back to a SAM.