I think this is another provocation by Ukraine under a false flag, shortly after Bucha. Russia does not have Tochka-U missiles in service, and in the direction of the wreckage, it flew in from the southwest, from the territory controlled by the Ukrainian Armed Forces.
I didn't expected to hear something different from you. Ok, let's debunk it:
1. Russian forces used Tochka-U in military training in Belarus just before war in Ukraine:
https://rg.ru/2022/02/15/na-ucheniiah-v-belarusi-otrabatyvaiut-puski-raket-i-podderzhku-oboroniaiushchihsia-vojsk.htmlIt's also possibe that attack was made using Belarus owned Tochka-U, but I don't think that it change something.
2. You're saying that it flew from southwest, but there is reports and video taht Tochka-U was released from Shakhtarsk direction, which is controlled by Russia:
https://t.me/itsdonetsk/118173. Kramatorsk station was hited on 10:30 AM local time, but on Russian media there was message about it on 10:25 AM local time. Interesting that tweet was made via TweetDeck - tool used to make scheduled tweets:
https://twitter.com/rianru/status/15123458862689976324. Day before this attack on one pro-Russian Telegram channel there was post for people who are leaving Kramatorsk, Slovyansk and near cities suggesting to avoid railway transport:
https://imgur.com/TVZMOluAnd after all, I don't see why Ukraine would need to kill their own citizens, especially in such expensive way - they don't have that much Tochka-U missiles.