Yea. I keep my distance from western media.

I don't belive that story though. Russian artillery pieces, the ones that are at the front, are significantly in a deteriotated state. (old, refurbished ones). They often misfire. To compound this problem, Putin has taken a ton of badly made artillery shells from North Korea, that bring forth another set of trouble. There have been several instances of these artillery pieces exploding during operation.

So, it is possible that they may have accidently fired on their own troops. Don't think it was intentional.