Civil panic being "Please stay indoors while we finish chasing down the other person who did this to your loved ones"?
That's an example, yes.
I -- and my better half as well -- love city life. High-density urban living is often much maligned, but the world is full of people, and people are interesting creatures, with interesting habits and habitats. Society is, on the whole, a resilient thing, and it works better when people get out, interact, and have a (cautious) modicum of trust for each other. So yes -- it would dishonor my memory, or hers, for a city to be brought to a standstill on either of our behalves.
Shutting down a city's public spaces destroys trust, not only in the essential decency and resiliency of the community, but also in the basic safety of those public spaces. Shutting down commerce harms everyone -- and it's not for you to say what's a small way and what's big; if someone who's paid by the hour misses their rent, it's no small matter to them. And to what end?
When you make these deaths worth going to any end for, you say that these people are better, more important than those whose deaths happen less spectacularly, even when similarly untimely or undeserved. I, for one, would rather know that however I go, my time was spent building a strong, resilient society and community -- one that trusts in the essential decency of others and is too strong and self-assured for needless fear.