Ukranian nationalists known as Azov battalion. We are being hit by propaganda from both sides, all you can do is interpolate. In this case, it makes no sense that the Russians would mine and shell their own people that they're trying to protect from the Azovs.
I'm not going to mention critical thinking, but I'd like you to answer the question rather than deflect it. That is,
^^The question pertains more to cities being evacuated in Crimean regions of Ukraine, like Maripol, and less so Kiev area evacuations.
Now as far as the alleged cluster munition loaded SRBM, I admitted this is from a source that is pro Russia (southfront). But it seems clear that it is a detailed report, with trajectory that has radar tracks, and is quite specific. ("fired from the AFU positions near the city of Krasnoarmeysk (now Pokrovsk), which is located approximately 55 km from Donetsk. It was carried out by the 19th Separate Missile Brigade of the Armed Forces of Ukraine")
I'm sure the Russians are archiving such data. They will be able to back up these war crimes with data.
It seems by the way that the Urkanian peace negotiator
was not killed directly by the Ukranian secret services (which looks to be ---imho---nationalist infiltrated). Article linked also talks about the refugee status of Maripol.