"... One repeated theme is that the Russian military is carrying out ruthless campaigns of murder against civilians and destruction of residential areas, often referring to the Russian military operations in Syria, claiming that they had done the same thing in Syria, especially against Aleppo. These are supposedly examples of their war crimes and crimes against humanity."
Reuters, A city destroyed: Scenes of devastation in besieged Mariupol, April 4, 2022.
The Guardian, Drone footage shows scale of devastation in Mariupol, March 24, 2022.
When I watch a video, and in the first two minutes the featured experts start by denying and downplaying what what is intimately real to hundreds of millions of people, I tend to question the expert's expertise really fast. Even more when the "leading expert" is someone I never heard of and has no influence beyond online comment sections.