I'm so sorry for your loss
Even in our day-to-day world, one of my bosses insists we call in, even if we're going to be late to work. He's had a couple of situations in the past where single coworkers who failed to turn up at the office were later found to have died in their sleep at home. By making sure his staff calls in, he has an idea of who might need a home visit to ensure that they're okay.
It did sort of creep me out a little when a friend of mine who's a cop mentioned to me that if I ever got a call from "Andy," it would not be a good sign. Apparently, I'm on his "call if something happens to me" list.