There are many elite neighborhoods in Ukraine, e.g. Pechersky in Kiev where

high-ranking officials live there. If Russia really want to strike residential neighborhoods, there is a long list for them to target, not that old Soviet apartment in your mother in law area. The probability of the mistake in this incident from attacker's missiles and defender's S-300 is 50% vs 50%, I would say.

Glad your mother in law is okay. Let's stop the war now.