I followed your link from "Intercepted calls" at the top of your piece. It goes to Reddit. The post is by someone named "TotalSpaceNut." TotalSpaceNut is just reposting something from a user named "NatalkaKyiv" on Twitter. She says herself she doesn't know what the source of the material is.

This provides "a chilling indication of what they [Russians]are doing to civilians?" Are you fucking kidding me?

I'm 100% sure Russians have commited war crimes in Ukraine. But this is no better than hearsay. The original poster doesn't even pretend to know where it came from.

This war is horrible enough without posting unsourced crap. This kind of bullshit is what got us into Vietnam, Iraq, Iraq again, Libya, and Syria to name a few in my lifetime.