Just relax about it, and ask what they need, and do those things that you can and that you know will help. Take care of the body-- the simple tasks like making food available, making sure water is taken in, make sure they get fresh air. When that's in order, take care of the mind-- listen to their talking, but also give them time to NOT talk/think about it, too. (That's all true whether it's a love partner, a business partner, or a cop partner, BTW.)

Lot of wisdom in a Bereavement thread we have around here, somewhere, too.

~Susan