Russia has its own version of what happened [with the MH17 flight downing on July 17, 2014]. But Western investigators simply assigned the perpetrators. If there was evidence, they would turn it into a bigger show. But they have nothing, so they continue to raise this topic by official statements. This is easier than admitting that the investigation was not objective.
Recurring pro-Kremlin disinformation narrative about the downing of the MH17.
Regarding the Russian version of events, the claims by Buk manufacturer Almaz-Antey were debunked already in 2015 by Bellingcat. The evidence conducted by the Russian military company Almaz-Antey is only a small sample of misleading claims and conspiracy theories advanced by Moscow since 2015, many of which have contradicted one another. See previous debunking of these claims here, here, and here, and a summary of disinformation narratives on this case here.
The criminal investigation in the case was lead by the Joint Investigation Team - JIT - since in 2014. On 28 September 2016, the JIT announced that flight MH17 was shot down by a missile from the 9M38 series, which was launched by a BUK TELAR missile system. The system was transported from the Russian Federation to an agricultural field near the town of Pervomaiskyi in Eastern Ukraine, from where the missile was launched. After firing, the system - with 1 missing missile - went back to the Russian Federation. On the 24th of May 2018, the JIT announced its conclusion the BUK TELAR used to shoot down MH17 came from the 53rd Anti-Aircraft Missile Brigade, a unit of the Russian armed forces from Kursk in the Russian Federation.
On the basis of the investigation conducted by the JIT, the Dutch Public Persecution service will prosecute Igor Vsevolodovich Girkin, Sergey Nikolayevich Dubinskiy, Oleg Yuldashevich Pulatov, and Leonid Volodymyrovych Kharchenko for causing the crash of the MH17 and murdering the 289 persons on board. The public hearing is scheduled for March 9, 2020 in the Netherlands.