Were the victims mobiks?
If so, some people here are fairly heartless, and that's coming from me lol.
"BUT THEY HAD A CHOICE!!!" is not much of an argument, when choice Nr.2 is prison/penal colony.
Remember, today's mobiks would long have been on the frontlines as volunteers, if they wanted to fight for glory or whatever.
It's tragic, just like the deaths of so many relatively innocent German citizens in WWII was tragic, but as Clint Eastwood would say, "Deserve's got nothin to do with it."
Russia is f-cking things up for everybody, most of all obviously Ukraine, and they need to lose. Stuff like this, while tragic, is still a positive development in that sense.
From that perspective you are most definitely right.
Nothing wrong with celebrating this as a positive event for Ukraine in the grand scheme of things, if it's not simply cheering about the fact that forcefully mobilized men are losing their lives.