Colonel Douglas Macgregor On Alleged Russian War Crimes In Bucha, Ukraine

I have no idea what happened in Bucha, but what the colonel is saying here makes sense. It would make sense the Russians were trying to take Kiev, and that leading to a lot of civilian deaths, but here it appears to be that the narrative is: they couldn't take Kiev because the Ukrainians were too tough, so they left, but just before leaving, they decided to kill a lot of random civilians, then left the bodies lying around just to be accused of war crimes. Why would they do that?
Just promoting the video, the original is here, check their channel:
https://www.youtube.com/watch?v=-pipbj6XqkU