This is the same sort of timeline argument Noam Chomsky gave me regarding why he thinks that Zelensky stopped negotiating with Russia after Boris Johnson’s visit. After the firefights in Bucha he was still saying they’ll have to make a deal, then Johnson arrived and said Putin is not a man to make deals with. And then Zelensky stopped saying it. I asked Chomsky about this explicitly (whether the discovery of bodies shot point blank in the aftermath of the Russian withdrawal from Bucha was the decisive factor) and he pointed to the timeline.