His death is unfortunate, but stuff like this does happen in the real world. Call it callous and cruel all you want. Until the police know for sure, all things are possible.
Except you didn't bother to check the easily-obtainable facts before posting your baseless speculation and accusation, which would have completely refuted it. Such unfounded speculation and accusation expressed in the midst of grievers was irresponsible, inconsiderate, callous, and cruel.
That, too, happens in this real world. Sorry to learn you are another purveyor of it.