An international investigation is already underway in Bucha, but everything is clear as day there. The national police entered the city and organized a purge of "collaborators", killing everyone who did not have a blue bandage on his arm, and especially those with a white one. Yes, even shooting a video about it, which they then tried in vain to remove from the network.
I like how you changed your position about Bucha. First you said that it was fake made by Ukraine when they carried out dead people to the streets to show it to foreign media. And now you're saying that they made purge of collaborators.
If something goes against Russian narrative, just blame Ukrainians, even if all proofs goes against you. About that video with shooting in Bucha, it's clearly visible that tanks have V letter used by Russian forces. Even Peskov was caught on interview. So, then he simply started to defend himself that it was fake.
It's the same narrative they used in when the Katyn massacre came to light, and then when they shot down the Malaysian passenger plane.
In Katyn:
It wasn't us it was the Germans!
Ok, fine it was us.
In Ukraiune (Malaysian jet)
It wasn't us it was the Ukrainians
It wasn't us it was the Ukrainian separatist
Ok, fine it was us.
In Bucha:
It's all fake
It's not all fake but it was the Ukrainians
Now we're waiting for "ok, fine, we did it"