I encourage you to use the comments to express your opinion about what could have happened.
Months before July 17
- Ukraine President Yanukovich impeached in February 2014 (Source)
- Putin annexed Crimea (March 2014)
- Separatists supported with Russian equipment and Russian military leaders revolted in Eastern Ukraine. (Wikipedia)
- Oligarchs and Ukraine politicians have warm connections with the United States.
- Euromaidan is an important piece of the puzzle
- Ukraine politicians are corrupt. Ukraine is more corrupt than Russia
- Ukraine does not have a regular army like in Western countries. There are extreme rightwing armies which has mercenary soldiers from many countries. These are not controlled by the Ministry of Defense in Kiev but rather by oligarchs like Kolomoyskyi which has ties to Israel.
- The Kuala Lumpur War Crimes Commission. This is an alternative to the ICC. The court convicted Israel, US President Bush and UK PM Blair.
- Malaysia has friendly ties with Russia
Comment: Given the scanty evidence of bow-tie shrapnel, it's questionable whether it was even a BUK to begin with. We'd add a fourth possibility: an air-to-air missile. The DSB said it ruled out such a cause, but did not provide sufficient evidence or reasoning for such a choice, and it did not provide evidence that it comprehensively ruled out all other type of missiles.