I was affected some time ago, and I can't emphasize enough how important it is to reach out to the people you were in touch with, just for a simple "sorry to hear the news."

I really appreciated the folks who did reach out - some of whom I honestly didn't expect to. But I was deeply disappointed that others I've worked more closely with didn't bother. I was already in shock, and that just made things worse.

Hard to imagine; you don't really get it until it happens to you - hopefully never.